Nuno Cardoso Bruno Martins Marcirio Silveira Chaves Leonardo Andrade Mário J. Silva The XLDB Group at GeoCLEF 2005. 997-1006 2005 conf/clef/2005 CLEF http://dx.doi.org/10.1007/11878773_111 db/conf/clef/clef2005.html#CardosoMCAS05