Qualitative Modeling of Complex Physical Systems based on Similarity Calculus. - Nikola Bogunovic; Zeljko Jagnjic; Franjo Jovic (ESM, 2002)

Time series classification based on qualitative space fragmentation. - Zeljko Jagnjic; Nikola Bogunovic; Ivanka Pizeta; Franjo Jovic (Adv. Eng. Informatics, 2009)