A Possibilistic-Logic-Based Information Retrieval Model with Various Term-Weighting Approaches. - Janusz Kacprzyk; Katarzyna Nowacka; Slawomir Zadrozny (ICAISC, 2006)

Interpretation of the Keywords Weights in Information Retrieval: Fuzzy Logic Based Approaches. - Slawomir Zadrozny; Katarzyna Nowacka (DEXA Workshops, 2008)

Fuzzy information retrieval model revisited. - Slawomir Zadrozny; Katarzyna Nowacka (Fuzzy Sets Syst., 2009)

Using Fuzzy and Interval-Valued Fuzzy Sets in Automatic Text Categorization Based on a Fuzzy Information Retrieval Model. - Slawomir Zadrozny; Janusz Kacprzyk; Katarzyna Nowacka (35 Years of Fuzzy Set Theory, 2011)