Michele Artini Leonardo Candela Donatella Castelli Paolo Manghi Marko Mikulicic Pasquale Pagano Sustainable Digital Library Systems over the DRIVER Repository Infrastructure. 227-231 2008 ECDL http://dx.doi.org/10.1007/978-3-540-87599-4_23 conf/ercimdl/2008 db/conf/ercimdl/ecdl2008.html#ArtiniCCMMP08