%0 Journal Article %A Frič, Roman %T Duality for generalized events %J Mathematica slovaca %D 2004 %P 49-60 %V 54 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_2004__54_1_a5/ %G en %F MASLO_2004__54_1_a5