http://fm-cab.blogspot.com/2009/10/open-access-week-self-archiving-case.html

Kleine Fallstudie anhand eines Journals der Oxford University Press: "I undertook a very quick and very limited look at Journal of Refugee Studies (JRS) articles published in 2008 and 2009 to see how many pre- or postprint versions had been archived. Of the 41 articles I looked for, I only located one preprint, which was uploaded to the SSRN service."