{"id":"https://openalex.org/W2077562929","doi":"https://doi.org/10.1016/0020-0255(69)90017-6","title":"Some small, multitape universal Turing machines","display_name":"Some small, multitape universal Turing machines","publication_year":1969,"publication_date":"1969-04-01","ids":{"openalex":"https://openalex.org/W2077562929","doi":"https://doi.org/10.1016/0020-0255(69)90017-6","mag":"2077562929"},"language":"en","primary_location":{"id":"doi:10.1016/0020-0255(69)90017-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0020-0255(69)90017-6","pdf_url":null,"source":{"id":"https://openalex.org/S192650101","display_name":"Information Sciences","issn_l":"0020-0255","issn":["0020-0255","1872-6291"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Information Sciences","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/A5042169834","display_name":"Philip K. Hooper","orcid":null},"institutions":[{"id":"https://openalex.org/I195575238","display_name":"Middlebury College","ror":"https://ror.org/0217hb928","country_code":"US","type":"education","lineage":["https://openalex.org/I195575238"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"P Hooper","raw_affiliation_strings":["Mathematics Department, Middlebury College, Middlebury, VermontU.S.A"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Mathematics Department, Middlebury College, Middlebury, VermontU.S.A","institution_ids":["https://openalex.org/I195575238"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5042169834"],"corresponding_institution_ids":["https://openalex.org/I195575238"],"apc_list":{"value":3200,"currency":"USD","value_usd":3200},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.24050633,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"1","issue":"2","first_page":"205","last_page":"215"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12002","display_name":"Computability, Logic, AI Algorithms","score":0.9998999834060669,"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/T12002","display_name":"Computability, Logic, AI Algorithms","score":0.9998999834060669,"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/T12029","display_name":"DNA and Biological Computing","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12162","display_name":"Cellular Automata and Applications","score":0.9988999962806702,"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/universal-turing-machine","display_name":"Universal Turing machine","score":0.8588557243347168},{"id":"https://openalex.org/keywords/turing-machine-examples","display_name":"Turing machine examples","score":0.7512716054916382},{"id":"https://openalex.org/keywords/description-number","display_name":"Description number","score":0.7158606052398682},{"id":"https://openalex.org/keywords/turing-machine","display_name":"Turing machine","score":0.7137479186058044},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7005614042282104},{"id":"https://openalex.org/keywords/super-recursive-algorithm","display_name":"Super-recursive algorithm","score":0.6381330490112305},{"id":"https://openalex.org/keywords/time-hierarchy-theorem","display_name":"Time hierarchy theorem","score":0.5189728140830994},{"id":"https://openalex.org/keywords/nspace","display_name":"NSPACE","score":0.5086437463760376},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.347165048122406},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.17911174893379211},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.06575939059257507}],"concepts":[{"id":"https://openalex.org/C131671149","wikidata":"https://www.wikidata.org/wiki/Q2703890","display_name":"Universal Turing machine","level":4,"score":0.8588557243347168},{"id":"https://openalex.org/C21176728","wikidata":"https://www.wikidata.org/wiki/Q7854963","display_name":"Turing machine examples","level":5,"score":0.7512716054916382},{"id":"https://openalex.org/C179061269","wikidata":"https://www.wikidata.org/wiki/Q5263786","display_name":"Description number","level":5,"score":0.7158606052398682},{"id":"https://openalex.org/C29248071","wikidata":"https://www.wikidata.org/wiki/Q163310","display_name":"Turing machine","level":3,"score":0.7137479186058044},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7005614042282104},{"id":"https://openalex.org/C31402856","wikidata":"https://www.wikidata.org/wiki/Q5295939","display_name":"Super-recursive algorithm","level":5,"score":0.6381330490112305},{"id":"https://openalex.org/C48415503","wikidata":"https://www.wikidata.org/wiki/Q5251122","display_name":"Time hierarchy theorem","level":5,"score":0.5189728140830994},{"id":"https://openalex.org/C201958364","wikidata":"https://www.wikidata.org/wiki/Q1756295","display_name":"NSPACE","level":5,"score":0.5086437463760376},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.347165048122406},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.17911174893379211},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.06575939059257507}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0020-0255(69)90017-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0020-0255(69)90017-6","pdf_url":null,"source":{"id":"https://openalex.org/S192650101","display_name":"Information Sciences","issn_l":"0020-0255","issn":["0020-0255","1872-6291"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Information Sciences","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.6899999976158142,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320309622","display_name":"Harvard University","ror":"https://ror.org/03vek6s52"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1978129078","https://openalex.org/W1981789328","https://openalex.org/W2094800151","https://openalex.org/W2506342332","https://openalex.org/W2586782524"],"related_works":["https://openalex.org/W3014863312","https://openalex.org/W195780958","https://openalex.org/W1662868588","https://openalex.org/W2156308118","https://openalex.org/W2037124586","https://openalex.org/W1526857708","https://openalex.org/W293759077","https://openalex.org/W1838451616","https://openalex.org/W2547364878","https://openalex.org/W2341138125"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}