{"id":"https://openalex.org/W2086101449","doi":"https://doi.org/10.1007/bf01048403","title":"A first-order axiomatization of the theory of finite trees","display_name":"A first-order axiomatization of the theory of finite trees","publication_year":1995,"publication_date":"1995-04-01","ids":{"openalex":"https://openalex.org/W2086101449","doi":"https://doi.org/10.1007/bf01048403","mag":"2086101449"},"language":"en","primary_location":{"id":"doi:10.1007/bf01048403","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01048403","pdf_url":null,"source":{"id":"https://openalex.org/S197419112","display_name":"Journal of Logic Language and Information","issn_l":"0925-8531","issn":["0925-8531","1572-9583"],"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":"Journal of Logic, Language and Information","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://dx.doi.org/10.22028/D291-25008","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5017672883","display_name":"Rolf Backofen","orcid":"https://orcid.org/0000-0001-8231-3323"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Rolf Backofen","raw_affiliation_strings":["DFKI Saarbr\u00fccken, Stuhlsatzenhausweg 3, 66123, Saarbr\u00fccken, Germany","DFKI Saarbr\u00fccken, Saarbr\u00fccken, Germany"],"affiliations":[{"raw_affiliation_string":"DFKI Saarbr\u00fccken, Stuhlsatzenhausweg 3, 66123, Saarbr\u00fccken, Germany","institution_ids":[]},{"raw_affiliation_string":"DFKI Saarbr\u00fccken, Saarbr\u00fccken, Germany","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015195830","display_name":"James Rogers","orcid":"https://orcid.org/0000-0003-3276-4059"},"institutions":[{"id":"https://openalex.org/I79576946","display_name":"University of Pennsylvania","ror":"https://ror.org/00b30xv10","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"James Rogers","raw_affiliation_strings":["Institute for Research in Cognitive Science, Univ. of Pennsylvania, 19104-6228, Philadelphia, PA, USA","Institute for Research in Cognitive Science, University of Pennsylvania, Philadelphia, USA"],"affiliations":[{"raw_affiliation_string":"Institute for Research in Cognitive Science, Univ. of Pennsylvania, 19104-6228, Philadelphia, PA, USA","institution_ids":["https://openalex.org/I79576946"]},{"raw_affiliation_string":"Institute for Research in Cognitive Science, University of Pennsylvania, Philadelphia, USA","institution_ids":["https://openalex.org/I79576946"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5027009667","display_name":"K. Vijay\u2010Shanker","orcid":"https://orcid.org/0000-0003-0958-3073"},"institutions":[{"id":"https://openalex.org/I86501945","display_name":"University of Delaware","ror":"https://ror.org/01sbq1a82","country_code":"US","type":"education","lineage":["https://openalex.org/I86501945"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"K. Vijay-Shanker","raw_affiliation_strings":["Dept. of Computer and Information Science, Univ. of Delaware, 19716, Newark, DE, USA","Dept. of Computer and Information Science, Univ. of Delaware, Newark, USA"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer and Information Science, Univ. of Delaware, 19716, Newark, DE, USA","institution_ids":["https://openalex.org/I86501945"]},{"raw_affiliation_string":"Dept. of Computer and Information Science, Univ. of Delaware, Newark, USA","institution_ids":["https://openalex.org/I86501945"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5017672883"],"corresponding_institution_ids":[],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":3.221,"has_fulltext":false,"cited_by_count":68,"citation_normalized_percentile":{"value":0.92118035,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"4","issue":"1","first_page":"5","last_page":"39"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T11567","display_name":"semigroups and automata theory","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T10181","display_name":"Natural Language Processing Techniques","score":0.991100013256073,"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/T11727","display_name":"Advanced Algebra and Logic","score":0.9884999990463257,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/axiom","display_name":"Axiom","score":0.7923757433891296},{"id":"https://openalex.org/keywords/branching","display_name":"Branching (polymer chemistry)","score":0.7080686688423157},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5632644295692444},{"id":"https://openalex.org/keywords/expressive-power","display_name":"Expressive power","score":0.5582495927810669},{"id":"https://openalex.org/keywords/bounded-function","display_name":"Bounded function","score":0.5181254744529724},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.4394868016242981},{"id":"https://openalex.org/keywords/order","display_name":"Order (exchange)","score":0.4393153190612793},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3546978235244751},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.32873544096946716},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.19850489497184753},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.1792300045490265}],"concepts":[{"id":"https://openalex.org/C167729594","wikidata":"https://www.wikidata.org/wiki/Q17736","display_name":"Axiom","level":2,"score":0.7923757433891296},{"id":"https://openalex.org/C206175624","wikidata":"https://www.wikidata.org/wiki/Q595731","display_name":"Branching (polymer chemistry)","level":2,"score":0.7080686688423157},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5632644295692444},{"id":"https://openalex.org/C195818886","wikidata":"https://www.wikidata.org/wiki/Q5421724","display_name":"Expressive power","level":2,"score":0.5582495927810669},{"id":"https://openalex.org/C34388435","wikidata":"https://www.wikidata.org/wiki/Q2267362","display_name":"Bounded function","level":2,"score":0.5181254744529724},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.4394868016242981},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.4393153190612793},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3546978235244751},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.32873544096946716},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.19850489497184753},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.1792300045490265},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"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/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1007/bf01048403","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01048403","pdf_url":null,"source":{"id":"https://openalex.org/S197419112","display_name":"Journal of Logic Language and Information","issn_l":"0925-8531","issn":["0925-8531","1572-9583"],"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":"Journal of Logic, Language and Information","raw_type":"journal-article"},{"id":"pmh:oai:publikationen.sulb.uni-saarland.de:20.500.11880/25064","is_oa":true,"landing_page_url":"http://dx.doi.org/10.22028/D291-25008","pdf_url":null,"source":{"id":"https://openalex.org/S4377196383","display_name":"Publications of the UdS (Saarland University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I91712215","host_organization_name":"Saarland University","host_organization_lineage":["https://openalex.org/I91712215"],"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":"doc-type:report"},{"id":"doi:10.22028/d291-25008","is_oa":true,"landing_page_url":"https://doi.org/10.22028/d291-25008","pdf_url":null,"source":{"id":"https://openalex.org/S7407052975","display_name":"Universit\u00e4t des Saarlandes","issn_l":null,"issn":[],"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":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"report"}],"best_oa_location":{"id":"pmh:oai:publikationen.sulb.uni-saarland.de:20.500.11880/25064","is_oa":true,"landing_page_url":"http://dx.doi.org/10.22028/D291-25008","pdf_url":null,"source":{"id":"https://openalex.org/S4377196383","display_name":"Publications of the UdS (Saarland University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I91712215","host_organization_name":"Saarland University","host_organization_lineage":["https://openalex.org/I91712215"],"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":"doc-type:report"},"sustainable_development_goals":[{"score":0.6399999856948853,"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W112868023","https://openalex.org/W166162739","https://openalex.org/W1494885404","https://openalex.org/W1507910031","https://openalex.org/W1510923317","https://openalex.org/W1602567617","https://openalex.org/W1972573551","https://openalex.org/W1973576343","https://openalex.org/W1995475723","https://openalex.org/W2017658637","https://openalex.org/W2032956356","https://openalex.org/W2072960784","https://openalex.org/W2073663206","https://openalex.org/W2074487014","https://openalex.org/W2091081059","https://openalex.org/W2124102576","https://openalex.org/W2125167152","https://openalex.org/W2141919960","https://openalex.org/W2162583406","https://openalex.org/W2495761211","https://openalex.org/W2565645697","https://openalex.org/W2954327716","https://openalex.org/W2971268466","https://openalex.org/W4212983671","https://openalex.org/W4376544279","https://openalex.org/W6821323709"],"related_works":["https://openalex.org/W2462424100","https://openalex.org/W2148974013","https://openalex.org/W2034871982","https://openalex.org/W2130873474","https://openalex.org/W1983409968","https://openalex.org/W2034850439","https://openalex.org/W1974919125","https://openalex.org/W178365807","https://openalex.org/W2022364537","https://openalex.org/W2141653867"],"abstract_inverted_index":null,"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
