Viewing Stemming as Recall Enhancement. - Wessel Kraaij; Renée Pohlmann (SIGIR, 1996)

The Effect of Syntactic Phrase Indexing on Retrieval Performance for Dutch Texts. - Renée Pohlmann; Wessel Kraaij (RIAO, 1997)

Comparing the Effect of Syntactic vs. Statistical Phrase Indexing Strategies for Dutch. - Wessel Kraaij; Renée Pohlmann (ECDL, 1998)

Twenty-One at TREC-8: using Language Technology for Information Retrieval. - Wessel Kraaij; Renée Pohlmann; Djoerd Hiemstra (TREC, 1999)

Translation Resources, Merging Strategies, and Relevance Feedback for Cross-Language Information Retrieval. - Djoerd Hiemstra; Wessel Kraaij; Renée Pohlmann; Thijs Westerveld (CLEF, 2000)

Twenty-One at CLEF-2000: Translation Resources, Merging Strategies and Relevance Feedback. - Djoerd Hiemstra; Wessel Kraaij; Renée Pohlmann; Thijs Westerveld (CLEF (Working Notes), 2000)

Different approaches to Cross Language Information Retrieval. - Wessel Kraaij; Renée Pohlmann (CLIN, 2000)