{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T07:39:18Z","timestamp":1777448358552,"version":"3.51.4"},"reference-count":10,"publisher":"Walter de Gruyter GmbH","issue":"4","license":[{"start":{"date-parts":[[2020,9,2]],"date-time":"2020-09-02T00:00:00Z","timestamp":1599004800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>We study the proportion of Web of Science (WoS) citation links that are represented in the Crossref Open Citation Index (COCI), with the possible aim of using COCI in research evaluation instead of the WoS, if the level of coverage was sufficient.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design\/methodology\/approach<\/jats:title>\n                    <jats:p>We calculate the proportion on citation links where both publications have a WoS accession number and a DOI simultaneously, and where the cited publications have had at least one author from our institution, the Czech Technical University in Prague. We attempt to look up each such citation link in COCI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Findings<\/jats:title>\n                    <jats:p>\n                      We find that 53.7% of WoS citation links are present in the COCI. The proportion varies largely by discipline. The total figures differ significantly from 40% in the large-scale study by Van Eck, Waltman, Larivi\u00e8re, and Sugimoto (blog 2018,\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/www.cwts.nl\/blog?article=n-r2s234\">https:\/\/www.cwts.nl\/blog?article=n-r2s234<\/jats:ext-link>\n                      ).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Research limitations<\/jats:title>\n                    <jats:p>The sample does not cover all science areas uniformly; it is heavily focused on Engineering and Technology, and only some disciplines of Natural Sciences are present. However, this reflects the real scientific orientation and publication profile of our institution.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Practical implications<\/jats:title>\n                    <jats:p>The current level of coverage is not sufficient for the WoS to be replaced by COCI for research evaluation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Originality\/value<\/jats:title>\n                    <jats:p>The present study illustrates a COCI vs WoS comparison on the scale of a larger technical university in Central Europe.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2478\/jdis-2020-0037","type":"journal-article","created":{"date-parts":[[2020,9,7]],"date-time":"2020-09-07T08:58:07Z","timestamp":1599469087000},"page":"35-42","source":"Crossref","is-referenced-by-count":5,"title":["Can Crossref Citations Replace Web of Science for Research Evaluation? The Share of Open Citations"],"prefix":"10.2478","volume":"5","author":[{"given":"Tom\u00e1\u0161","family":"Chudlarsk\u00fd","sequence":"first","affiliation":[{"name":"Czech Technical University in Prague , Computing and Information Centre , Jugosl\u00e1vsk\u00fdch partyz\u00e1n\u016f 3, CZ-16000 Praha 6 , Czech Republic"},{"name":"Charles University , Institute of Information Studies and Librarianship , Na P\u0159\u00edkop\u011b 29, CZ-11000 Praha 1 , Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Dvo\u0159\u00e1k","sequence":"additional","affiliation":[{"name":"Czech Technical University in Prague , Computing and Information Centre , Jugosl\u00e1vsk\u00fdch partyz\u00e1n\u016f 3, CZ-16000 Praha 6 , Czech Republic"},{"name":"Charles University , Institute of Information Studies and Librarianship , Na P\u0159\u00edkop\u011b 29, CZ-11000 Praha 1 , Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2020,9,2]]},"reference":[{"key":"2026020218532016892_j_jdis-2020-0037_ref_001_w2aab3b7c67b1b6b1ab2b1b1Aa","doi-asserted-by":"crossref","unstructured":"La Bruzzo, S., Manghi, P., & Mannocci, A. (2019). OpenAIRE\u2019s DOIBoost\u2014Boosting Crossref for Research. In: Manghi, P., Candela, L., Silvello, G. (eds) Digital Libraries: Supporting Open Science. IRCDL 2019. Communications in Computer and Information Science, vol 988. Springer, Cham, DOI 10.1007\/978-3-030-11226-4_11","DOI":"10.1007\/978-3-030-11226-4_11"},{"key":"2026020218532016892_j_jdis-2020-0037_ref_002_w2aab3b7c67b1b6b1ab2b1b2Aa","unstructured":"Chudlarsk\u00fd, T., & Dvo\u0159\u00e1k, J. (2019). Can Crossref Citations Replace Web of Science for Research Evaluation? The Share of Open Citations. [poster abstract] In Proceedings of the 17th Conference of the International Society for Scientometrics and Informetrics. (pp. 2551\u20132552). Rome, Italy: Edizioni Efesto. ISBN 978-88-3381-118-5."},{"key":"2026020218532016892_j_jdis-2020-0037_ref_003_w2aab3b7c67b1b6b1ab2b1b3Aa","unstructured":"Crossref. Retrieved from https:\/\/www.crossref.org"},{"key":"2026020218532016892_j_jdis-2020-0037_ref_004_w2aab3b7c67b1b6b1ab2b1b4Aa","doi-asserted-by":"crossref","unstructured":"Dvo\u0159\u00e1k, J., Chudlarsk\u00fd, T., & \u0160pa\u010dek, J. (2019). Practical CRIS Interoperability. In 14th International Conference on Current Research Information Systems: Practical CRIS Interoperability. Amsterdam: Elsevier B.V., pp. 256\u2013264. Procedia Computer Science. vol. 146. ISSN 1877-0509. DOI 10.1016\/j.procs.2019.01.077","DOI":"10.1016\/j.procs.2019.01.077"},{"key":"2026020218532016892_j_jdis-2020-0037_ref_005_w2aab3b7c67b1b6b1ab2b1b5Aa","unstructured":"van Eck, N.J., Waltman, L., Larivi\u00e8re, V., & Sugimoto, C. (2018). Crossref as a new source of citation data: A comparison with Web of Science and Scopus. Retrieved from https:\/\/www.cwts.nl\/blog?article=n-r2s234"},{"key":"2026020218532016892_j_jdis-2020-0037_ref_006_w2aab3b7c67b1b6b1ab2b1b6Aa","unstructured":"Fraumann, G., & Waltman, L. (2019). The 2019 Workshop on Open Scientometric Data Infrastructures at Leiden University. Retrieved from https:\/\/www.cwts.nl\/blog?article=n-r2x274&title=the-2019-workshop-on-open-scientometric-data-infrastructures-at-leiden-university"},{"key":"2026020218532016892_j_jdis-2020-0037_ref_007_w2aab3b7c67b1b6b1ab2b1b7Aa","unstructured":"ISSI (2017). Open citations: A letter from the scientometric community to scholarly publishers. Retrieved from http:\/\/issi-society.org\/open-citations-letter\/"},{"key":"2026020218532016892_j_jdis-2020-0037_ref_008_w2aab3b7c67b1b6b1ab2b1b8Aa","unstructured":"OpenCitations. (2018). Open Citation Indexes: COCI, the OpenCitations Index of Crossref open DOI-to-DOI references. Dump, the \u201cCitation data (CSV)\u201d file. DOI 10.6084\/m9.figshare.6741422.v3"},{"key":"2026020218532016892_j_jdis-2020-0037_ref_009_w2aab3b7c67b1b6b1ab2b1b9Aa","doi-asserted-by":"crossref","unstructured":"Shotton, D. (2017). 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