Vallin, AlessandroMagnini, BernardoAyache, ChristelleErbach, GregorPeñas, Anselmode Rijke, MaartenRocha, PauloSimov, KirilSutcliffe, RichardPeters, CarolBorri, Francesca2009-11-032009-11-032006-02-282004Alessandro Vallin; Bernardo Magnini; Christelle Ayache; Gregor Erbach; Anselmo Peñas; Maarten de Rijke; Paulo Rocha; Kiril Simov; Richard Sutcliffe. "Overview of the CLEF 2004 Multilingual Question answering track". In Carol Peters; Francesca Borri (ed.), Cross Language Evaluation Forum: Working Notes for the CLEF 2004 Workshop (CLEF 2004) (Bath, UK, 15-17 September 2004) , Pisa, Italy: IST-CNR, s/pp; 281-294 . Revised as Vallin et al. (2005)http://hdl.handle.net/10400.26/347http://www.linguateca.pt/superb/busca_publ.pl?idi=1141122284application/pdfengOverview of the CLEF 2004 Multilingual Question answering trackconference object