%0 Journal Article
%A J. Morchało
%T On differential inequality for non-linear integro-differential equation with retardation
%J Commentationes Mathematicae
%D 1980
%P  111-123
%V 22
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/cm.v22i1.6009/
%R 10.14708/cm.v22i1.6009
%G pl
%F 10_14708_cm_v22i1_6009