Stemming and lemmatization in the clustering of finnish text documents. - Tuomo Korenius; Jorma Laurikkala; Kalervo Järvelin; Martti Juhola (CIKM, 2004)

Hierarchical clustering of a Finnish newspaper article collection with graded relevance assessments. - Tuomo Korenius; Jorma Laurikkala; Martti Juhola; Kalervo Järvelin (Inf. Retr., 2006)

On principal component analysis, cosine and Euclidean measures in information retrieval. - Tuomo Korenius; Jorma Laurikkala; Martti Juhola (Inf. Sci., 2007)