%0 Journal Article
%A N. N. Molchanov
%T The use of the theory of continuous groups of transformations in investigating the solutions of ordinary 

%J Doklady Akademii Nauk
%D 1957
%P 998-1001
%V 112
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_112_6_a4/
%G ru
%F DAN_1957_112_6_a4