TY  - GEN 
AU  - Martín Martín, Alberto
AU  - Costas, Rodrigo
AU  - van Leeuwen, Thed
AU  - Delgado López-Cózar, Emilio
PY  - 2018
UR  - http://hdl.handle.net/10481/49995
AB  - This article uses Google Scholar (GS) as a source of data to analyse Open Access (OA) levels across all countries and fields of research. All articles and reviews with a DOI and published in 2009 or 2014 and covered by the three main citation indexes...
LA  - eng
KW  - academic publishers
KW  - academic search engines
KW  - academic social networks
KW  - creative commons
KW  - crossref
KW  - google scholar
KW  - institutional repositories
KW  - open access
KW  - open research metadata
KW  - ResearchGate
KW  - self-archiving
TI  - Evidence of Open Access of scientific publications in Google Scholar: a large-scale analysis
DO  - 10.17605/OSF.IO/K54UV
ER  -