Bernardo Magnini Alessandro Vallin Christelle Ayache Gregor Erbach Anselmo Peñas Maarten de Rijke Paulo Rocha Kiril Ivanov Simov Richard F. E. Sutcliffe Overview of the CLEF 2004 Multilingual Question Answering Track. 371-391 2004 conf/clef/2004 CLEF http://dx.doi.org/10.1007/11519645_38 db/conf/clef/clef2004.html#MagniniVAEPRRSS05