%0 Journal Article %A W. Mlak %T Parabolic differential inequalities and Chaplighin's method %J Annales Polonici Mathematici %D 1960 %P 139-153 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-8-2-139-153/ %R 10.4064/ap-8-2-139-153 %G en %F 10_4064_ap_8_2_139_153