Cite

Pavol Kita
Faculty of Arts, Comenius UniversityBratislava, Slovakia
Grzegorz Maciejewski
Faculty of Economics, University of Economics in KatowiceKatowice, Poland
Marta Žambochová
Department of Mathematical and Informatic, Purkyně UniversityÚstí nad Labem, Czech Republic
František Križan
Faculty of Natural Sciences, Comenius UniversityBratislava, Slovakia