%0 Journal Article
%A P. Besala
%T On partial differential inequalities of the first order
%J Annales Polonici Mathematici
%D 1971
%P 145-148
%V 25
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-25-2-145-148/
%R 10.4064/ap-25-2-145-148
%G en
%F 10_4064_ap_25_2_145_148