Commentary: When Open Access isn’t
Connotea Imports 2012-07-31
Summary:
"The Bo-Christer Björk et al. do not define what exactly they mean by OA. However, from reading their paper is is pretty clear that any article for which they can get hold of free full text is counted as OA. The license under which the copy is distributed does not to matter, and they thus count the 90% of articles in PubMed Central that are published under non-OA licenses as OA...."