%0 Journal Article %A Andrzej Karafiat %T Discrete maximum principle in parabolic boundary-value problems %J Annales Polonici Mathematici %D 1991 %P 253-265 %V 53 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-53-3-253-265/ %R 10.4064/ap-53-3-253-265 %G en %F 10_4064_ap_53_3_253_265