{"id":"https://openalex.org/W2061147538","doi":"https://doi.org/10.1016/0097-3165(80)90057-6","title":"On the enumeration of self-dual codes","display_name":"On the enumeration of self-dual codes","publication_year":1980,"publication_date":"1980-01-01","ids":{"openalex":"https://openalex.org/W2061147538","doi":"https://doi.org/10.1016/0097-3165(80)90057-6","mag":"2061147538"},"language":"en","primary_location":{"id":"doi:10.1016/0097-3165(80)90057-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0097-3165(80)90057-6","pdf_url":null,"source":{"id":"https://openalex.org/S128556326","display_name":"Journal of Combinatorial Theory Series A","issn_l":"0097-3165","issn":["0097-3165","1096-0899"],"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":"Journal of Combinatorial Theory, Series A","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/A5104059025","display_name":"John H. Conway","orcid":null},"institutions":[{"id":"https://openalex.org/I241749","display_name":"University of Cambridge","ror":"https://ror.org/013meh722","country_code":"GB","type":"education","lineage":["https://openalex.org/I241749"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"J.H Conway","raw_affiliation_strings":["University of Cambridge, Cambridge, England","University of Cambridge Cambridge. England"],"affiliations":[{"raw_affiliation_string":"University of Cambridge, Cambridge, England","institution_ids":["https://openalex.org/I241749"]},{"raw_affiliation_string":"University of Cambridge Cambridge. England","institution_ids":["https://openalex.org/I241749"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052458305","display_name":"Vera Pless","orcid":null},"institutions":[{"id":"https://openalex.org/I39422238","display_name":"University of Illinois Chicago","ror":"https://ror.org/02mpq6x41","country_code":"US","type":"education","lineage":["https://openalex.org/I39422238"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Vera Pless","raw_affiliation_strings":["University of Illinois at Chicago Circle, Chicago, Illinois 60680 USA","University of Illinois at Chicago Circle Chicago, Illinois 60680 USA"],"affiliations":[{"raw_affiliation_string":"University of Illinois at Chicago Circle, Chicago, Illinois 60680 USA","institution_ids":["https://openalex.org/I39422238"]},{"raw_affiliation_string":"University of Illinois at Chicago Circle Chicago, Illinois 60680 USA","institution_ids":["https://openalex.org/I39422238"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5104059025"],"corresponding_institution_ids":["https://openalex.org/I241749"],"apc_list":{"value":3320,"currency":"USD","value_usd":3320},"apc_paid":null,"fwci":18.8961,"has_fulltext":false,"cited_by_count":188,"citation_normalized_percentile":{"value":0.99056416,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"28","issue":"1","first_page":"26","last_page":"53"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11130","display_name":"Coding theory and cryptography","score":0.9998999834060669,"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/T11130","display_name":"Coding theory and cryptography","score":0.9998999834060669,"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/T11797","display_name":"graph theory and CDMA systems","score":0.9901999831199646,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12162","display_name":"Cellular Automata and Applications","score":0.9419000148773193,"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/weight-distribution","display_name":"Weight distribution","score":0.6471155285835266},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6046228408813477},{"id":"https://openalex.org/keywords/enumeration","display_name":"Enumeration","score":0.5848152041435242},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.5737868547439575},{"id":"https://openalex.org/keywords/dual","display_name":"Dual (grammatical number)","score":0.4944143295288086},{"id":"https://openalex.org/keywords/minimum-weight","display_name":"Minimum weight","score":0.48087456822395325},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4745800495147705},{"id":"https://openalex.org/keywords/permutation","display_name":"Permutation (music)","score":0.46095991134643555},{"id":"https://openalex.org/keywords/linear-code","display_name":"Linear code","score":0.45870694518089294},{"id":"https://openalex.org/keywords/dual-code","display_name":"Dual code","score":0.45542827248573303},{"id":"https://openalex.org/keywords/binary-number","display_name":"Binary number","score":0.4506365656852722},{"id":"https://openalex.org/keywords/partial-permutation","display_name":"Partial permutation","score":0.44572412967681885},{"id":"https://openalex.org/keywords/equivalence","display_name":"Equivalence (formal languages)","score":0.42791423201560974},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.4269358515739441},{"id":"https://openalex.org/keywords/quadratic-residue","display_name":"Quadratic residue","score":0.42270010709762573},{"id":"https://openalex.org/keywords/block-code","display_name":"Block code","score":0.3726131319999695},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.3342975676059723},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.30603307485580444},{"id":"https://openalex.org/keywords/cyclic-permutation","display_name":"Cyclic permutation","score":0.26125526428222656},{"id":"https://openalex.org/keywords/arithmetic","display_name":"Arithmetic","score":0.2560814917087555},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.22654324769973755},{"id":"https://openalex.org/keywords/symmetric-group","display_name":"Symmetric group","score":0.14551085233688354},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.07049062848091125},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07017284631729126}],"concepts":[{"id":"https://openalex.org/C25432639","wikidata":"https://www.wikidata.org/wiki/Q3711790","display_name":"Weight distribution","level":2,"score":0.6471155285835266},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6046228408813477},{"id":"https://openalex.org/C156340839","wikidata":"https://www.wikidata.org/wiki/Q2704791","display_name":"Enumeration","level":2,"score":0.5848152041435242},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.5737868547439575},{"id":"https://openalex.org/C2780980858","wikidata":"https://www.wikidata.org/wiki/Q110022","display_name":"Dual (grammatical number)","level":2,"score":0.4944143295288086},{"id":"https://openalex.org/C2778945305","wikidata":"https://www.wikidata.org/wiki/Q6865502","display_name":"Minimum weight","level":2,"score":0.48087456822395325},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4745800495147705},{"id":"https://openalex.org/C21308566","wikidata":"https://www.wikidata.org/wiki/Q7169365","display_name":"Permutation (music)","level":2,"score":0.46095991134643555},{"id":"https://openalex.org/C2400350","wikidata":"https://www.wikidata.org/wiki/Q1752667","display_name":"Linear code","level":4,"score":0.45870694518089294},{"id":"https://openalex.org/C73666251","wikidata":"https://www.wikidata.org/wiki/Q5310189","display_name":"Dual code","level":5,"score":0.45542827248573303},{"id":"https://openalex.org/C48372109","wikidata":"https://www.wikidata.org/wiki/Q3913","display_name":"Binary number","level":2,"score":0.4506365656852722},{"id":"https://openalex.org/C145633696","wikidata":"https://www.wikidata.org/wiki/Q1401935","display_name":"Partial permutation","level":4,"score":0.44572412967681885},{"id":"https://openalex.org/C2780069185","wikidata":"https://www.wikidata.org/wiki/Q7977945","display_name":"Equivalence (formal languages)","level":2,"score":0.42791423201560974},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.4269358515739441},{"id":"https://openalex.org/C12817185","wikidata":"https://www.wikidata.org/wiki/Q878259","display_name":"Quadratic residue","level":2,"score":0.42270010709762573},{"id":"https://openalex.org/C157125643","wikidata":"https://www.wikidata.org/wiki/Q884707","display_name":"Block code","level":3,"score":0.3726131319999695},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.3342975676059723},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.30603307485580444},{"id":"https://openalex.org/C77670614","wikidata":"https://www.wikidata.org/wiki/Q212130","display_name":"Cyclic permutation","level":3,"score":0.26125526428222656},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.2560814917087555},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.22654324769973755},{"id":"https://openalex.org/C128622974","wikidata":"https://www.wikidata.org/wiki/Q849512","display_name":"Symmetric group","level":2,"score":0.14551085233688354},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.07049062848091125},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07017284631729126},{"id":"https://openalex.org/C124952713","wikidata":"https://www.wikidata.org/wiki/Q8242","display_name":"Literature","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0097-3165(80)90057-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0097-3165(80)90057-6","pdf_url":null,"source":{"id":"https://openalex.org/S128556326","display_name":"Journal of Combinatorial Theory Series A","issn_l":"0097-3165","issn":["0097-3165","1096-0899"],"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":"Journal of Combinatorial Theory, Series A","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6063425697","display_name":null,"funder_award_id":"MCS7603143","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G7886165765","display_name":null,"funder_award_id":"MCS57603143 A02","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320332697","display_name":"University of Illinois at Chicago","ror":"https://ror.org/02mpq6x41"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1963661276","https://openalex.org/W1966360582","https://openalex.org/W1980273148","https://openalex.org/W2014783995","https://openalex.org/W2028378109","https://openalex.org/W2037306962","https://openalex.org/W2068699755","https://openalex.org/W2126470725","https://openalex.org/W6639152548"],"related_works":["https://openalex.org/W1680404258","https://openalex.org/W3008704690","https://openalex.org/W2144639381","https://openalex.org/W2080702656","https://openalex.org/W2064422003","https://openalex.org/W2127492979","https://openalex.org/W2963553930","https://openalex.org/W1667411252","https://openalex.org/W2016512817","https://openalex.org/W2061147538"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":5}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}