{"id":"https://openalex.org/W1499174375","doi":"https://doi.org/10.1007/3-540-52559-9_67","title":"Algebraic implementation of objects over objects","display_name":"Algebraic implementation of objects over objects","publication_year":1990,"publication_date":"1990-01-01","ids":{"openalex":"https://openalex.org/W1499174375","doi":"https://doi.org/10.1007/3-540-52559-9_67","mag":"1499174375"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-52559-9_67","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-52559-9_67","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"conference-paper","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/A5108787616","display_name":"Hans-Dieter Ehrich","orcid":null},"institutions":[{"id":"https://openalex.org/I94509681","display_name":"Technische Universit\u00e4t Braunschweig","ror":"https://ror.org/010nsgg66","country_code":"DE","type":"education","lineage":["https://openalex.org/I94509681"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"H. -D. Ehrich","raw_affiliation_strings":["Abteilung Datenbanken, Technische Universit\u00e4t Braunschweig, Postfach 3329, D-3300, Braunschweig, FRG","Technische Universit\u00e4t Braunschweig"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Abteilung Datenbanken, Technische Universit\u00e4t Braunschweig, Postfach 3329, D-3300, Braunschweig, FRG","institution_ids":["https://openalex.org/I94509681"]},{"raw_affiliation_string":"Technische Universit\u00e4t Braunschweig","institution_ids":["https://openalex.org/I94509681"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5105822466","display_name":"Am\u0131\u0301lcar Sernadas","orcid":"https://orcid.org/0000-0001-7895-8436"},"institutions":[{"id":"https://openalex.org/I4387152517","display_name":"Instituto Superior T\u00e9cnico","ror":"https://ror.org/03db2by73","country_code":"PT","type":"education","lineage":["https://openalex.org/I141596103","https://openalex.org/I4387152517"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"A. Sernadas","raw_affiliation_strings":["Departmento de Matematica, Instituto Superior Tecnico, 1096, Lisboa Codex, Portugal","INSTITUTO SUPERIOR T\u00c9CNICO"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departmento de Matematica, Instituto Superior Tecnico, 1096, Lisboa Codex, Portugal","institution_ids":["https://openalex.org/I4387152517"]},{"raw_affiliation_string":"INSTITUTO SUPERIOR T\u00c9CNICO","institution_ids":["https://openalex.org/I4387152517"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":6.87,"has_fulltext":false,"cited_by_count":31,"citation_normalized_percentile":{"value":0.97381342,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"239","last_page":"266"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9836999773979187,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10126","display_name":"Logic, programming, and type systems","score":0.9836999773979187,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9790999889373779,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T11596","display_name":"Constraint Satisfaction and Optimization","score":0.9747999906539917,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/morphism","display_name":"Morphism","score":0.840843677520752},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7964270114898682},{"id":"https://openalex.org/keywords/encapsulation","display_name":"Encapsulation (networking)","score":0.5779476165771484},{"id":"https://openalex.org/keywords/algebraic-number","display_name":"Algebraic number","score":0.4820743203163147},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.4729178547859192},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.4522963762283325},{"id":"https://openalex.org/keywords/extension","display_name":"Extension (predicate logic)","score":0.42854541540145874},{"id":"https://openalex.org/keywords/method","display_name":"Method","score":0.4165076017379761},{"id":"https://openalex.org/keywords/object-oriented-programming","display_name":"Object-oriented programming","score":0.3444400131702423},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.34183353185653687},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.24970591068267822},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.18996301293373108},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.16841691732406616}],"concepts":[{"id":"https://openalex.org/C137212723","wikidata":"https://www.wikidata.org/wiki/Q1948412","display_name":"Morphism","level":2,"score":0.840843677520752},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7964270114898682},{"id":"https://openalex.org/C81147070","wikidata":"https://www.wikidata.org/wiki/Q1172449","display_name":"Encapsulation (networking)","level":2,"score":0.5779476165771484},{"id":"https://openalex.org/C9376300","wikidata":"https://www.wikidata.org/wiki/Q168817","display_name":"Algebraic number","level":2,"score":0.4820743203163147},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.4729178547859192},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.4522963762283325},{"id":"https://openalex.org/C2778029271","wikidata":"https://www.wikidata.org/wiki/Q5421931","display_name":"Extension (predicate logic)","level":2,"score":0.42854541540145874},{"id":"https://openalex.org/C512554520","wikidata":"https://www.wikidata.org/wiki/Q815844","display_name":"Method","level":3,"score":0.4165076017379761},{"id":"https://openalex.org/C73752529","wikidata":"https://www.wikidata.org/wiki/Q79872","display_name":"Object-oriented programming","level":2,"score":0.3444400131702423},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.34183353185653687},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.24970591068267822},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18996301293373108},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.16841691732406616},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/3-540-52559-9_67","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-52559-9_67","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W115619138","https://openalex.org/W177686494","https://openalex.org/W580933293","https://openalex.org/W1489371530","https://openalex.org/W1504300023","https://openalex.org/W1505296242","https://openalex.org/W1551791208","https://openalex.org/W1591179049","https://openalex.org/W1770006921","https://openalex.org/W2053853349","https://openalex.org/W2133957474","https://openalex.org/W2136920408","https://openalex.org/W2157598146","https://openalex.org/W2165121897","https://openalex.org/W2488242598","https://openalex.org/W2599978747","https://openalex.org/W2986507006","https://openalex.org/W4230442843","https://openalex.org/W6722519807"],"related_works":["https://openalex.org/W636365802","https://openalex.org/W1481087101","https://openalex.org/W1966284351","https://openalex.org/W2895480205","https://openalex.org/W2132560534","https://openalex.org/W214703013","https://openalex.org/W55128154","https://openalex.org/W1494774170","https://openalex.org/W149935530","https://openalex.org/W2038369737"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
