Advanced Language Technologies for Digital Libraries : International Workshops on NLP4DL 2009, Viareggio, Italy, June 15, 2009 and AT4DL 2009, Trento, Italy, September 8, 2009 - Raffaella Bernardi, Sally Chambers, Björn Gottfried, Frédérique Segond, Ilya Zaihrayeu ((Lecture Notes in Computer Science))