%0 Journal Article
%A A. D. Myshkis
%A L. È. Èl'sgol'ts
%T Some results and problems in the theory of differential equations
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1967
%P 19-57
%V 22
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1967_22_2_a1/
%G en
%F RM_1967_22_2_a1