László Kovács Norbert Fuhr Carlo Meghini Research and Advanced Technology for Digital Libraries, 11th European Conference, ECDL 2007, Budapest, Hungary, September 16-21, 2007, Proceedings ECDL Lecture Notes in Computer Science 4675 Springer 2007 978-3-540-74850-2 db/conf/ercimdl/ecdl2007.html