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Maier, T.: Digitale Bibliothek rückt ins Zwielicht : Deutsche Politiker und der Börsenverein des Buchhandels machen Front gegen Google (2009)
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Kousha, K.; Thelwall, M.; Rezaie, S.: Assessing the citation impact of books : the role of Google Books, Google Scholar, and Scopus (2011)
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Abrizah, A.; Thelwall, M.: Can the impact of non-Western academic books be measured? : an investigation of Google Books and Google Scholar for Malaysia (2014)
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Kousha, K.; Thelwall, M.: ¬An automatic method for extracting citations from Google Books (2015)
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