Paulo Quaresma Luis Quintano Irene Pimenta Rodrigues José Saias Pedro Salgueiro University of Évora in QA@CLEF-2004. 534-543 2004 conf/clef/2004 CLEF http://dx.doi.org/10.1007/11519645_52 db/conf/clef/clef2004.html#QuaresmaQRSS05