{"id":"https://openalex.org/W2037451030","doi":"https://doi.org/10.1080/0161-118291857118","title":"THE SIEMENS AND HALSKE T52E CIPHER MACHINE","display_name":"THE SIEMENS AND HALSKE T52E CIPHER MACHINE","publication_year":1982,"publication_date":"1982-10-01","ids":{"openalex":"https://openalex.org/W2037451030","doi":"https://doi.org/10.1080/0161-118291857118","mag":"2037451030"},"language":"it","primary_location":{"id":"doi:10.1080/0161-118291857118","is_oa":false,"landing_page_url":"https://doi.org/10.1080/0161-118291857118","pdf_url":null,"source":{"id":"https://openalex.org/S185196701","display_name":"Cryptologia","issn_l":"0161-1194","issn":["0161-1194","1558-1586"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cryptologia","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/A5110307525","display_name":"Donald W. Davies","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"DONALD W. DAVIES","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5110307525"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.12842565,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"6","issue":"4","first_page":"289","last_page":"308"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12836","display_name":"History and Developments in Astronomy","score":0.02539999969303608,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12836","display_name":"History and Developments in Astronomy","score":0.02539999969303608,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13175","display_name":"Historical Astronomy and Related Studies","score":0.018699999898672104,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13917","display_name":"Engineering and Material Science Research","score":0.014100000262260437,"subfield":{"id":"https://openalex.org/subfields/2500","display_name":"General Materials Science"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/siemens","display_name":"Siemens","score":0.9263186454772949},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5753082036972046},{"id":"https://openalex.org/keywords/cipher","display_name":"Cipher","score":0.5728597640991211},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.30746909976005554},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.25523000955581665},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15318411588668823},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.06348755955696106}],"concepts":[{"id":"https://openalex.org/C100053769","wikidata":"https://www.wikidata.org/wiki/Q169893","display_name":"Siemens","level":2,"score":0.9263186454772949},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5753082036972046},{"id":"https://openalex.org/C2780221543","wikidata":"https://www.wikidata.org/wiki/Q4681865","display_name":"Cipher","level":3,"score":0.5728597640991211},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.30746909976005554},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.25523000955581665},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15318411588668823},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.06348755955696106}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1080/0161-118291857118","is_oa":false,"landing_page_url":"https://doi.org/10.1080/0161-118291857118","pdf_url":null,"source":{"id":"https://openalex.org/S185196701","display_name":"Cryptologia","issn_l":"0161-1194","issn":["0161-1194","1558-1586"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cryptologia","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.4399999976158142}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2889557831","https://openalex.org/W2389261154","https://openalex.org/W613085492","https://openalex.org/W4243246472","https://openalex.org/W3173728350","https://openalex.org/W4240572821","https://openalex.org/W2351649981","https://openalex.org/W2349550680","https://openalex.org/W2390686810"],"abstract_inverted_index":null,"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-03-03T08:47:05.690250","created_date":"2025-10-10T00:00:00"}