Google Scholar, Microsoft Academic, Scopus, Dimensions, Web of Science, and OpenCitations’ COCI: a multidisciplinary comparison of coverage via citations

• Published in: Scientometrics Vol. 126; no. 1; pp. 871 - 906
• Main Authors: Martín-Martín, Alberto, Thelwall, Mike, Orduna-Malea, Enrique, Delgado López-Cózar, Emilio
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.01.2021; Springer Nature B.V
• Subjects: Bibliometrics; Categories; Citation analysis; Computer Science; Humanities; Information Storage and Retrieval; Library Science; Scientific papers; Microsoft Academic; OpenCitations; Citation analysis; Scopus; Dimensions; Coverage; Bibliographic databases; COCI; Literature reviews; Web of Science; Bibliometrics; CrossRef; Citations; Google Scholar

New sources of citation data have recently become available, such as Microsoft Academic, Dimensions, and the OpenCitations Index of CrossRef open DOI-to-DOI citations (COCI). Although these have been compared to the Web of Science Core Collection (WoS), Scopus, or Google Scholar, there is no systema...