%0 Journal Article %A Barbara Zubik-Kowal %T On First Order Partial Differential-Functional Inequalities %J Mathematica balkanica %D 1992 %P 75 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_1992_6_1_a5/ %F MABA_1992_6_1_a5