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Google Scholar, Web of Science, and Scopus: a systematic comparison of citations in 252 subject categories.
Alberto Martín-Martín
Enrique Orduña-Malea
Mike Thelwall
Emilio Delgado López-Cózar
Published in:
CoRR (2018)
Keyphrases
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google scholar
digital libraries
search engine
web search engines
metadata
databases
data mining
artificial intelligence
specific features
website
information extraction
web applications
web content
web directories