Cf. the situation at some (many?) Swedish public libraries, where the (company-centralized, DRM) ebook downloads every now and then have to be shut down, due to the libraries' quarterly quota being used up. (A quota that the libraries themselves are forced to set in order to prevent their budget to be eaten up by ebook downloads (the library pay the ebook provider 20 SEK per ebook download).)
Z. Muela-Meza. LIS (Library and Information Science Critique): Journal of the Sciences of Information Recorded in Documents (Crítica Bibliotecológica: Revista de las Ciencias de la Información Documental), 4 (2):
63 - 114(мая 2012)