{"id":"https://openalex.org/W2055991160","doi":"https://doi.org/10.1007/bf02941136","title":"The criticality of the time on the refund of the projects. The special case of the concession projects","display_name":"The criticality of the time on the refund of the projects. The special case of the concession projects","publication_year":2006,"publication_date":"2006-01-01","ids":{"openalex":"https://openalex.org/W2055991160","doi":"https://doi.org/10.1007/bf02941136","mag":"2055991160"},"language":"en","primary_location":{"id":"doi:10.1007/bf02941136","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf02941136","pdf_url":null,"source":{"id":"https://openalex.org/S140563256","display_name":"Operational Research","issn_l":"1109-2858","issn":["1109-2858","1866-1505"],"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":"Operational Research","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/A5049627452","display_name":"Evangelos K. Christakos","orcid":null},"institutions":[{"id":"https://openalex.org/I4210118684","display_name":"Trademco (Greece)","ror":"https://ror.org/02q87d656","country_code":"GR","type":"company","lineage":["https://openalex.org/I4210118684"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Evangelos K. Christakos","raw_affiliation_strings":["Dr Civil Engineer,\n        A.U.TH., 24 Distomou Str., 14121, Athens","A.U.TH., Athens"],"affiliations":[{"raw_affiliation_string":"Dr Civil Engineer,\n        A.U.TH., 24 Distomou Str., 14121, Athens","institution_ids":["https://openalex.org/I4210118684"]},{"raw_affiliation_string":"A.U.TH., Athens","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5025967042","display_name":"Glikeria Kalfakakou","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Glikeria Kalfakakou","raw_affiliation_strings":["Dr Civil Engineer A.U.TH., Associate Professor A.U.TH.,\n        Department of Civil Engineer, A.U.TH., Greece","Department of Civil Engineer, A.U.TH., Greece"],"affiliations":[{"raw_affiliation_string":"Dr Civil Engineer A.U.TH., Associate Professor A.U.TH.,\n        Department of Civil Engineer, A.U.TH., Greece","institution_ids":[]},{"raw_affiliation_string":"Department of Civil Engineer, A.U.TH., Greece","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5049627452"],"corresponding_institution_ids":["https://openalex.org/I4210118684"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.794,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.84894763,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"6","issue":"1","first_page":"27","last_page":"36"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11939","display_name":"Public-Private Partnership Projects","score":0.5440999865531921,"subfield":{"id":"https://openalex.org/subfields/1408","display_name":"Strategy and Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11939","display_name":"Public-Private Partnership Projects","score":0.5440999865531921,"subfield":{"id":"https://openalex.org/subfields/1408","display_name":"Strategy and Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/equity","display_name":"Equity (law)","score":0.5344144105911255},{"id":"https://openalex.org/keywords/project-management","display_name":"Project management","score":0.5261656641960144},{"id":"https://openalex.org/keywords/payment","display_name":"Payment","score":0.517966628074646},{"id":"https://openalex.org/keywords/criticality","display_name":"Criticality","score":0.5127254724502563},{"id":"https://openalex.org/keywords/operations-research","display_name":"Operations research","score":0.4810886085033417},{"id":"https://openalex.org/keywords/quality","display_name":"Quality (philosophy)","score":0.4768427610397339},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.45397284626960754},{"id":"https://openalex.org/keywords/investment","display_name":"Investment (military)","score":0.44044411182403564},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.36836087703704834},{"id":"https://openalex.org/keywords/finance","display_name":"Finance","score":0.33777543902397156},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.327938973903656},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14109236001968384},{"id":"https://openalex.org/keywords/management","display_name":"Management","score":0.09444442391395569}],"concepts":[{"id":"https://openalex.org/C199728807","wikidata":"https://www.wikidata.org/wiki/Q2578557","display_name":"Equity (law)","level":2,"score":0.5344144105911255},{"id":"https://openalex.org/C15952604","wikidata":"https://www.wikidata.org/wiki/Q179012","display_name":"Project management","level":2,"score":0.5261656641960144},{"id":"https://openalex.org/C145097563","wikidata":"https://www.wikidata.org/wiki/Q1148747","display_name":"Payment","level":2,"score":0.517966628074646},{"id":"https://openalex.org/C125611927","wikidata":"https://www.wikidata.org/wiki/Q17008131","display_name":"Criticality","level":2,"score":0.5127254724502563},{"id":"https://openalex.org/C42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","level":1,"score":0.4810886085033417},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.4768427610397339},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.45397284626960754},{"id":"https://openalex.org/C27548731","wikidata":"https://www.wikidata.org/wiki/Q88272","display_name":"Investment (military)","level":3,"score":0.44044411182403564},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.36836087703704834},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.33777543902397156},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.327938973903656},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14109236001968384},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.09444442391395569},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"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/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","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/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf02941136","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf02941136","pdf_url":null,"source":{"id":"https://openalex.org/S140563256","display_name":"Operational Research","issn_l":"1109-2858","issn":["1109-2858","1866-1505"],"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":"Operational Research","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W2044387362","https://openalex.org/W2279842660"],"related_works":["https://openalex.org/W2376759283","https://openalex.org/W3008607579","https://openalex.org/W126231364","https://openalex.org/W2333336726","https://openalex.org/W2279399181","https://openalex.org/W1668846860","https://openalex.org/W1620380493","https://openalex.org/W2963698000","https://openalex.org/W1593207319","https://openalex.org/W3175481712"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}