..."
the odds that an open access journal is referenced onthe English Wikipedia are 47% higher compared to closed access"
Thanks for posting! That's an interesting paper, for all sorts of reasons. I read it because I highly doubt that the number is as low as that. There is an increasing preference for open access external links just because it's becoming the only way for newbies to avoid the AfD queue. I was disappointed that the stats were not limited to external links, as I think that would be more interesting (the print references have often been grandfathered in, while the online references generally are more recently added by Wikipedians). I was really puzzled though by the graph comparing citations across various language-pedias (Galician at rank 7th !?!).
Also it would be interesting to know how many of those originally English citations are migrating into other wiki languages through the translation tool. I know I reuse citations from non-English languages on occasion when I can't find anything in English while creating non-existent articles in English from Wikidata info that have articles out there in other languages.