Langham-Putrow, Allison, Caitlin Bakker, Amy Riegelman, and Sergi Lozano. "Is the Open Access Citation Advantage Real? a Systematic Review of the Citation of Open Access and Subscription-Based Articles." Plos One. 16.6 (2021)
This research has examined the extent of an open access citation advantage (OACA), the increased citation of articles made available open access (OA), given that previous findings have been contradictory and inconclusive, based on a systematic comparison of citations for OA and non-OA articles.