Fuzzy-Begriffe - formale Begriffsanalyse unscharfer Daten. - Silke Pollandt (Springer, 1997)

On the Contextual Logic of Ordinal Data. - Silke Pollandt; Rudolf Wille (ICCS, 2000)

Relation Graphs: A Structure for Representing Relations in Contextual Logic of Relations. - Silke Pollandt (ICCS, 2002)

Functorial scaling of ordinal data. - Silke Pollandt; Rudolf Wille (Discret. Appl. Math., 2005)