%0 Journal Article
%A I. P. Makarov
%T Inter-College Conference on Qualitative Theory of Differential Equations, Ryazan'
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1970
%V 25
%N 2
%U http://geodesic.mathdoc.fr/item/RM_1970_25_2_a20/
%G ru
%F RM_1970_25_2_a20