{"id":"https://openalex.org/W3004454911","doi":"https://doi.org/10.1109/access.2020.2971712","title":"On Using Grey Literature and Google Scholar in Systematic Literature Reviews in Software Engineering","display_name":"On Using Grey Literature and Google Scholar in Systematic Literature Reviews in Software Engineering","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W3004454911","doi":"https://doi.org/10.1109/access.2020.2971712","mag":"3004454911"},"language":"en","primary_location":{"id":"doi:10.1109/access.2020.2971712","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2971712","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/08984351.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"review","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/08984351.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5017263346","display_name":"Affan Yasin","orcid":"https://orcid.org/0000-0002-0166-2239"},"institutions":[{"id":"https://openalex.org/I52719799","display_name":"Blekinge Institute of Technology","ror":"https://ror.org/0093a8w51","country_code":"SE","type":"education","lineage":["https://openalex.org/I52719799"]},{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN","SE"],"is_corresponding":false,"raw_author_name":"Affan Yasin","raw_affiliation_strings":["School of Computing, Blekinge Institute of Technology, Karlskrona, Sweden","School of Software, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-0166-2239","affiliations":[{"raw_affiliation_string":"School of Computing, Blekinge Institute of Technology, Karlskrona, Sweden","institution_ids":["https://openalex.org/I52719799"]},{"raw_affiliation_string":"School of Software, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029072456","display_name":"Rubia Fatima","orcid":"https://orcid.org/0000-0002-7144-1925"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Rubia Fatima","raw_affiliation_strings":["School of Software, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-7144-1925","affiliations":[{"raw_affiliation_string":"School of Software, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030845033","display_name":"Lijie Wen","orcid":"https://orcid.org/0000-0003-0358-3160"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lijie Wen","raw_affiliation_strings":["School of Software, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0003-0358-3160","affiliations":[{"raw_affiliation_string":"School of Software, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015132481","display_name":"Wasif Afzal","orcid":"https://orcid.org/0000-0003-0611-2655"},"institutions":[{"id":"https://openalex.org/I82509713","display_name":"M\u00e4lardalen University","ror":"https://ror.org/033vfbz75","country_code":"SE","type":"education","lineage":["https://openalex.org/I82509713"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Wasif Afzal","raw_affiliation_strings":["School of Information, Design and Innovation, M\u00e4lardalen University, V\u00e4ster\u00e5s, Sweden"],"raw_orcid":"https://orcid.org/0000-0003-0611-2655","affiliations":[{"raw_affiliation_string":"School of Information, Design and Innovation, M\u00e4lardalen University, V\u00e4ster\u00e5s, Sweden","institution_ids":["https://openalex.org/I82509713"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052072467","display_name":"Muhammad Azhar","orcid":"https://orcid.org/0000-0003-3687-0270"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Muhammad Azhar","raw_affiliation_strings":["College of Computer Science and Software Engineering, Shenzhen University, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0003-3687-0270","affiliations":[{"raw_affiliation_string":"College of Computer Science and Software Engineering, Shenzhen University, Shenzhen, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5030588511","display_name":"Richard Torkar","orcid":"https://orcid.org/0000-0002-0118-8143"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Richard Torkar","raw_affiliation_strings":["Software Engineering Division, Gothunberg University, Gothenburg, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-0118-8143","affiliations":[{"raw_affiliation_string":"Software Engineering Division, Gothunberg University, Gothenburg, Sweden","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":853,"currency":"EUR","value_usd":919},"fwci":2.9612,"has_fulltext":true,"cited_by_count":81,"citation_normalized_percentile":{"value":0.90243902,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"8","issue":null,"first_page":"36226","last_page":"36243"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10260","display_name":"Software Engineering Research","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10260","display_name":"Software Engineering Research","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10430","display_name":"Software Engineering Techniques and Practices","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11675","display_name":"Open Source Software Innovations","score":0.9833999872207642,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/checklist","display_name":"Checklist","score":0.7577570676803589},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.6941410899162292},{"id":"https://openalex.org/keywords/grey-literature","display_name":"Grey literature","score":0.6940293312072754},{"id":"https://openalex.org/keywords/ranking","display_name":"Ranking (information retrieval)","score":0.6915473937988281},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6316092014312744},{"id":"https://openalex.org/keywords/systematic-review","display_name":"Systematic review","score":0.6273815631866455},{"id":"https://openalex.org/keywords/measure","display_name":"Measure (data warehouse)","score":0.5450128316879272},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.5119346380233765},{"id":"https://openalex.org/keywords/quality","display_name":"Quality (philosophy)","score":0.47359922528266907},{"id":"https://openalex.org/keywords/inclusion","display_name":"Inclusion (mineral)","score":0.47232502698898315},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.44001075625419617},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.3270889222621918},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.22143220901489258},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.16421517729759216},{"id":"https://openalex.org/keywords/sociology","display_name":"Sociology","score":0.15215164422988892},{"id":"https://openalex.org/keywords/political-science","display_name":"Political science","score":0.07901585102081299},{"id":"https://openalex.org/keywords/social-science","display_name":"Social science","score":0.06779149174690247}],"concepts":[{"id":"https://openalex.org/C2779356329","wikidata":"https://www.wikidata.org/wiki/Q922625","display_name":"Checklist","level":2,"score":0.7577570676803589},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6941410899162292},{"id":"https://openalex.org/C61904560","wikidata":"https://www.wikidata.org/wiki/Q1148359","display_name":"Grey literature","level":3,"score":0.6940293312072754},{"id":"https://openalex.org/C189430467","wikidata":"https://www.wikidata.org/wiki/Q7293293","display_name":"Ranking (information retrieval)","level":2,"score":0.6915473937988281},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6316092014312744},{"id":"https://openalex.org/C189708586","wikidata":"https://www.wikidata.org/wiki/Q1504425","display_name":"Systematic review","level":3,"score":0.6273815631866455},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.5450128316879272},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.5119346380233765},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.47359922528266907},{"id":"https://openalex.org/C109359841","wikidata":"https://www.wikidata.org/wiki/Q728944","display_name":"Inclusion (mineral)","level":2,"score":0.47232502698898315},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.44001075625419617},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.3270889222621918},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.22143220901489258},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.16421517729759216},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.15215164422988892},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.07901585102081299},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"score":0.06779149174690247},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C180747234","wikidata":"https://www.wikidata.org/wiki/Q23373","display_name":"Cognitive psychology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C2779473830","wikidata":"https://www.wikidata.org/wiki/Q1540899","display_name":"MEDLINE","level":2,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/access.2020.2971712","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2971712","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/08984351.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:DiVA.org:bth-19337","is_oa":true,"landing_page_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:bth-19337","pdf_url":null,"source":{"id":"https://openalex.org/S4306402024","display_name":"DiVA (Blekinge Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I52719799","host_organization_name":"Blekinge Institute of Technology","host_organization_lineage":["https://openalex.org/I52719799"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:doaj.org/article:34066b92b4fa4419a86de4820aad5114","is_oa":true,"landing_page_url":"https://doaj.org/article/34066b92b4fa4419a86de4820aad5114","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 8, Pp 36226-36243 (2020)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2020.2971712","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2971712","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/08984351.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.800000011920929,"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4"}],"awards":[{"id":"https://openalex.org/G1648667516","display_name":null,"funder_award_id":"20160139 (TestMine)","funder_id":"https://openalex.org/F4320307330","funder_display_name":"Knowledge Foundation"},{"id":"https://openalex.org/G322333164","display_name":null,"funder_award_id":"2019YFB1704003","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G8317514390","display_name":"Design-Operation Continuum Methods for Testing and Deployment under Unforeseen Conditions for Cyber-Physical Systems of Systems","funder_award_id":"871319","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"}],"funders":[{"id":"https://openalex.org/F4320307330","display_name":"Knowledge Foundation","ror":"https://ror.org/00v64cg28"},{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3004454911.pdf","grobid_xml":"https://content.openalex.org/works/W3004454911.grobid-xml"},"referenced_works_count":169,"referenced_works":["https://openalex.org/W8673330","https://openalex.org/W23657122","https://openalex.org/W55422194","https://openalex.org/W108326761","https://openalex.org/W121976591","https://openalex.org/W202594383","https://openalex.org/W1499451227","https://openalex.org/W1500531601","https://openalex.org/W1522628668","https://openalex.org/W1539277817","https://openalex.org/W1567251093","https://openalex.org/W1588754008","https://openalex.org/W1681774957","https://openalex.org/W1791192914","https://openalex.org/W1901527989","https://openalex.org/W1902920013","https://openalex.org/W1964415670","https://openalex.org/W1965321492","https://openalex.org/W1965973270","https://openalex.org/W1969708027","https://openalex.org/W1972105418","https://openalex.org/W1972206920","https://openalex.org/W1972212434","https://openalex.org/W1981127147","https://openalex.org/W1982479358","https://openalex.org/W1983289841","https://openalex.org/W1984041362","https://openalex.org/W1985958467","https://openalex.org/W1985974932","https://openalex.org/W1986639107","https://openalex.org/W1989642178","https://openalex.org/W1994885765","https://openalex.org/W1998989165","https://openalex.org/W2001417608","https://openalex.org/W2003115510","https://openalex.org/W2003881653","https://openalex.org/W2005314833","https://openalex.org/W2005775395","https://openalex.org/W2008347524","https://openalex.org/W2012586128","https://openalex.org/W2014510775","https://openalex.org/W2015341485","https://openalex.org/W2017439596","https://openalex.org/W2017473528","https://openalex.org/W2021103593","https://openalex.org/W2022683857","https://openalex.org/W2031996520","https://openalex.org/W2034971763","https://openalex.org/W2035155297","https://openalex.org/W2035203430","https://openalex.org/W2035675794","https://openalex.org/W2037664399","https://openalex.org/W2047398661","https://openalex.org/W2051272303","https://openalex.org/W2054697506","https://openalex.org/W2055000704","https://openalex.org/W2057864103","https://openalex.org/W2060752940","https://openalex.org/W2061871805","https://openalex.org/W2063061530","https://openalex.org/W2064280708","https://openalex.org/W2064520173","https://openalex.org/W2066794936","https://openalex.org/W2067674876","https://openalex.org/W2070715538","https://openalex.org/W2072601349","https://openalex.org/W2075161804","https://openalex.org/W2076540765","https://openalex.org/W2081172579","https://openalex.org/W2084610557","https://openalex.org/W2088455662","https://openalex.org/W2090526358","https://openalex.org/W2095057899","https://openalex.org/W2096598237","https://openalex.org/W2096636183","https://openalex.org/W2097670073","https://openalex.org/W2102032378","https://openalex.org/W2103458796","https://openalex.org/W2104428593","https://openalex.org/W2104789242","https://openalex.org/W2104942599","https://openalex.org/W2105438268","https://openalex.org/W2106956101","https://openalex.org/W2108410964","https://openalex.org/W2108985975","https://openalex.org/W2109779682","https://openalex.org/W2110337982","https://openalex.org/W2111423723","https://openalex.org/W2113035899","https://openalex.org/W2113361184","https://openalex.org/W2117545199","https://openalex.org/W2117852815","https://openalex.org/W2118328848","https://openalex.org/W2118718321","https://openalex.org/W2118929052","https://openalex.org/W2121101532","https://openalex.org/W2122454446","https://openalex.org/W2122556706","https://openalex.org/W2125497800","https://openalex.org/W2127300211","https://openalex.org/W2127710371","https://openalex.org/W2128428793","https://openalex.org/W2128967738","https://openalex.org/W2130609675","https://openalex.org/W2132282373","https://openalex.org/W2132852904","https://openalex.org/W2136800703","https://openalex.org/W2136948862","https://openalex.org/W2137670391","https://openalex.org/W2138428785","https://openalex.org/W2139357103","https://openalex.org/W2139390039","https://openalex.org/W2140941224","https://openalex.org/W2141122596","https://openalex.org/W2141571517","https://openalex.org/W2141643743","https://openalex.org/W2141767681","https://openalex.org/W2142389202","https://openalex.org/W2143481458","https://openalex.org/W2145582734","https://openalex.org/W2145666584","https://openalex.org/W2147471614","https://openalex.org/W2147826933","https://openalex.org/W2149221687","https://openalex.org/W2149629152","https://openalex.org/W2149815841","https://openalex.org/W2151511199","https://openalex.org/W2152705278","https://openalex.org/W2153082171","https://openalex.org/W2153355793","https://openalex.org/W2154977027","https://openalex.org/W2157943826","https://openalex.org/W2159017129","https://openalex.org/W2159084491","https://openalex.org/W2160175301","https://openalex.org/W2161664815","https://openalex.org/W2162000403","https://openalex.org/W2162451880","https://openalex.org/W2163621605","https://openalex.org/W2164222795","https://openalex.org/W2166028951","https://openalex.org/W2166541753","https://openalex.org/W2168130919","https://openalex.org/W2168401819","https://openalex.org/W2168811232","https://openalex.org/W2168986002","https://openalex.org/W2169957228","https://openalex.org/W2260521151","https://openalex.org/W2291326419","https://openalex.org/W2407772516","https://openalex.org/W2468892010","https://openalex.org/W2483943907","https://openalex.org/W2735864825","https://openalex.org/W2759474179","https://openalex.org/W2783617754","https://openalex.org/W2787008041","https://openalex.org/W2903205512","https://openalex.org/W2985783640","https://openalex.org/W3143822685","https://openalex.org/W4232869667","https://openalex.org/W4235941825","https://openalex.org/W6600347547","https://openalex.org/W6608239168","https://openalex.org/W6629828605","https://openalex.org/W6634075004","https://openalex.org/W6639731980","https://openalex.org/W6681096154","https://openalex.org/W6682452919","https://openalex.org/W6744444422"],"related_works":["https://openalex.org/W4234875088","https://openalex.org/W2013796470","https://openalex.org/W2420514274","https://openalex.org/W2001467811","https://openalex.org/W4362687946","https://openalex.org/W4250451092","https://openalex.org/W1911705068","https://openalex.org/W2336383631","https://openalex.org/W1544537990","https://openalex.org/W2984938923"],"abstract_inverted_index":{"Context:":[0],"The":[1,21,208,230,305],"inclusion":[2],"of":[3,23,42,57,88,143,156,173,203,210,225,232,261,316,319,323],"grey":[4,336],"literature":[5,25],"(GL)":[6],"is":[7,32,51,73,80,117],"important":[8],"to":[9,65,83,106,119,139,152,313],"remove":[10],"publication":[11],"bias":[12],"while":[13],"gathering":[14],"available":[15],"evidence":[16],"regarding":[17],"a":[18,54,103,135,289],"certain":[19],"topic.":[20],"number":[22],"systematic":[24,136],"reviews":[26],"(SLRs)":[27],"in":[28,45,90,92,110,146,175,298],"Software":[29],"Engineering":[30],"(SE)":[31],"increasing":[33],"but":[34,62],"we":[35],"do":[36],"not":[37,74,329],"know":[38],"about":[39],"the":[40,63,70,86,141,154,201,240,324],"extent":[41,64,142],"GL":[43,89,101,109,144,182,204,211,226,233,262,279,284,297],"usage":[44,87,145],"these":[46,266,320],"SLRs.":[47,300,321],"Moreover,":[48],"Google":[49,122,161,302,309,332],"Scholar":[50,123,303,310,333],"rapidly":[52],"becoming":[53],"search":[55],"engine":[56],"choice":[58],"for":[59,99,108,124,128,270,277,282,291,295],"many":[60],"researchers":[61],"which":[66,286],"it":[67,116],"can":[68,287],"find":[69],"primary":[71,158,185,189,219,317,325],"studies":[72,159,183,190,220,318,326],"known.":[75],"Objective:":[76],"This":[77],"tertiary":[78],"study":[79,96,138],"an":[81],"attempt":[82],"i)":[84],"measure":[85,140,153],"SLRs":[91,148,170,193],"SE.":[93],"Furthermore":[94],"this":[95],"proposes":[97],"strategies":[98,276],"categorizing":[100,278],"and":[102,164,254,280],"quality":[104],"checklist":[105],"use":[107,120,212,227],"future":[111,299],"SLRs;":[112],"ii)":[113],"explore":[114],"if":[115],"feasible":[118],"only":[121],"finding":[125,157],"scholarly":[126],"articles":[127],"academic":[129],"research.":[130],"Method:":[131],"We":[132,273],"have":[133,177],"conducted":[134],"mapping":[137],"SE":[147,176],"as":[149,151,184,198,206],"well":[150],"feasibility":[155],"using":[160,331],"Scholar.":[162],"Results":[163],"conclusions:":[165],"a)":[166],"Grey":[167],"Literature:":[168],"76.09%":[169],"(105":[171],"out":[172],"138)":[174],"included":[178],"one":[179],"or":[180],"more":[181,292],"studies.":[186],"Among":[187],"total":[188],"across":[191],"all":[192],"(6307),":[194],"582":[195],"are":[196,239,267],"classified":[197],"GL,":[199],"making":[200],"frequency":[202],"citing":[205],"9.23%.":[207],"intensity":[209,224],"indicate":[213],"that":[214,236,265,308,327],"each":[215],"SLR":[216],"contains":[217],"5":[218],"on":[221],"average":[222],"(total":[223],"being":[228],"5.54).":[229],"ranking":[231],"tells":[234],"us":[235],"conference":[237],"papers":[238],"most":[241],"used":[242],"form":[243],"43.3%":[244],"followed":[245],"by":[246],"technical":[247],"reports":[248],"28.52%.":[249],"Universities,":[250],"research":[251],"institutes,":[252],"labs":[253],"scientific":[255],"societies":[256],"together":[257],"make":[258],"up":[259],"67.7%":[260],"used,":[263],"indicating":[264],"useful":[268],"sources":[269],"searching":[271],"GL.":[272],"additionally":[274],"propose":[275],"criteria":[281],"evaluating":[283],"quality,":[285],"become":[288],"basis":[290],"detailed":[293],"guidelines":[294],"including":[296],"b)":[301],"Results:":[304],"results":[306],"show":[307],"was":[311],"able":[312],"retrieve":[314],"96%":[315],"Most":[322],"were":[328,334],"found":[330],"from":[335],"sources.":[337]},"counts_by_year":[{"year":2026,"cited_by_count":9},{"year":2025,"cited_by_count":17},{"year":2024,"cited_by_count":15},{"year":2023,"cited_by_count":13},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":11},{"year":2020,"cited_by_count":5}],"updated_date":"2026-07-20T07:56:41.581041","created_date":"2025-10-10T00:00:00"}
