TY - JOUR AU - Robinson García, Nicolás AU - van Leeuwen, Thed N AU - Torres Salinas, Daniel PY - 2020 UR - http://hdl.handle.net/10481/64475 AB - In this paper we briefly introduce the concept of Open Access and review the many variants that have been presented in the literature. We then critically examine how OA variants are presented by data source and how they are operationalized in... LA - eng KW - bibliometrics KW - Open access KW - Acceso abierto KW - bibliometría TI - Measuring Open Access uptake: Data sources, expectations, and misconceptions DO - 10.5281/zenodo.4071143 ER -