%0 Journal Article %A Krejčí, Pavel %T Hysteresis operators - a new approach to evolution differential inequalities %J Commentationes Mathematicae Universitatis Carolinae %D 1989 %P 525-536 %V 30 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1989__30_3_a11/ %G en %F CMUC_1989__30_3_a11