%0 Journal Article %T Google Scholar, Microsoft Academic, Scopus, Dimensions, Web of Science, and OpenCitations’ COCI: a multidisciplinary comparison of coverage via citations %A Martín-Martín, Alberto %A Thelwall, Mike %A Orduna-Malea, Enrique %A Delgado López-Cózar, Emilio %A , %J Scientometrics %@ 0138-9130 %D 2020-09-21 %I Springer Science and Business Media LLC %~ DeepDyve