Research and Advanced Technology for Digital Libraries 13th European Conference, ECDL 2009, Corfu, Greece, September 27 - October 2, 2009. Proceedings - Agosti, Maristella; Borbinha, José; Kapidakis, Sarantos; Papatheodorou, Christos; Tsakonas, Giannis (Springer Berlin Heidelberg : Imprint: Springer, 2009)