Thomas Mandl Christa Womser-Hacker Analysis of the Reliability of the Multilingual Topic Set for the Cross Language Evaluation Forum. 21-28 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3237&spage=21 2003 conf/clef/2003 CLEF db/conf/clef/clef2003.html#MandlW03