A two-sided academic landscape: portrait of highly-cited documents in Google Scholar (1950-2013)

11 Jul 2016 Martin-Martin Alberto Orduna-Malea Enrique Ayllon Juan M. Lopez-Cozar Emilio Delgado

The main objective of this paper is to identify the set of highly-cited documents in Google Scholar and to define their core characteristics (document types, language, free availability, source providers, and number of versions), under the hypothesis that the wide coverage of this search engine may provide a different portrait about this document set respect to that offered by the traditional bibliographic databases. To do this, a query per year was carried out from 1950 to 2013 identifying the top 1,000 documents retrieved from Google Scholar and obtaining a final sample of 64,000 documents, of which 40% provided a free full-text link... (read more)

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