{"id":"https://openalex.org/W1529187820","doi":"https://doi.org/10.1007/s00607-001-1432-y","title":null,"display_name":null,"publication_year":2002,"publication_date":"2002-03-01","ids":{"openalex":"https://openalex.org/W1529187820","doi":"https://doi.org/10.1007/s00607-001-1432-y","mag":"1529187820"},"language":null,"primary_location":{"id":"doi:10.1007/s00607-001-1432-y","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00607-001-1432-y","pdf_url":null,"source":{"id":"https://openalex.org/S35593046","display_name":"Computing","issn_l":"0010-485X","issn":["0010-485X","1436-5057"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037696315","display_name":"Qi Kui Du","orcid":null},"institutions":[{"id":"https://openalex.org/I152031979","display_name":"Nanjing Normal University","ror":"https://ror.org/036trcv74","country_code":"CN","type":"education","lineage":["https://openalex.org/I152031979"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Q. Du","raw_affiliation_strings":["School of Mathematics and Computer Science Nanjing Normal University 122 Ninghai Road Nanjing, 210097 P. R. China","School of Mathematics and Computer Science Nanjing Normal University 122 Ninghai Road Nanjing, 210097 P. R. China E-mail: duqk@263.net, CN"],"affiliations":[{"raw_affiliation_string":"School of Mathematics and Computer Science Nanjing Normal University 122 Ninghai Road Nanjing, 210097 P. R. China","institution_ids":["https://openalex.org/I152031979"]},{"raw_affiliation_string":"School of Mathematics and Computer Science Nanjing Normal University 122 Ninghai Road Nanjing, 210097 P. R. China E-mail: duqk@263.net, CN","institution_ids":["https://openalex.org/I152031979"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091805728","display_name":"D. Yu","orcid":"https://orcid.org/0000-0002-3637-9599"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210120485","display_name":"Academy of Mathematics and Systems Science","ror":"https://ror.org/02jkmyk67","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210120485"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"D. Yu","raw_affiliation_strings":["ICMSEC Academy of Mathematics and System Science Chinese Academy of Sciences Beijing 100080, P. R. China","ICMSEC Academy of Mathematics and System Science Chinese Academy of Sciences Beijing 100080, P. R. China E-mail: ydh@lsec.cc.ac.cn, CN"],"affiliations":[{"raw_affiliation_string":"ICMSEC Academy of Mathematics and System Science Chinese Academy of Sciences Beijing 100080, P. R. China","institution_ids":["https://openalex.org/I4210120485"]},{"raw_affiliation_string":"ICMSEC Academy of Mathematics and System Science Chinese Academy of Sciences Beijing 100080, P. R. China E-mail: ydh@lsec.cc.ac.cn, CN","institution_ids":["https://openalex.org/I4210120485","https://openalex.org/I19820366"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5037696315"],"corresponding_institution_ids":["https://openalex.org/I152031979"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"68","issue":"2","first_page":"111","last_page":"129"},"is_retracted":null,"is_paratext":false,"is_xpac":false,"primary_topic":null,"topics":[],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4020000398159027},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.32575803995132446}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4020000398159027},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.32575803995132446}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s00607-001-1432-y","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00607-001-1432-y","pdf_url":null,"source":{"id":"https://openalex.org/S35593046","display_name":"Computing","issn_l":"0010-485X","issn":["0010-485X","1436-5057"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W1979597421","https://openalex.org/W2007980826","https://openalex.org/W4245490552","https://openalex.org/W4225152035","https://openalex.org/W2061531152","https://openalex.org/W3002753104","https://openalex.org/W2077600819","https://openalex.org/W1587224694","https://openalex.org/W2911598644"],"abstract_inverted_index":null,"counts_by_year":[{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2016-06-24T00:00:00"}