%0 Journal Article
%A Stanisław Gołąb
%T On the notion of gradient. I. Essentiality of regularity suppositions
%J Annales Polonici Mathematici
%D 1960
%P 1-4
%V 8
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-8-1-1-4/
%R 10.4064/ap-8-1-1-4
%G en
%F 10_4064_ap_8_1_1_4