%0 Journal Article
%A A. A. Dezin
%A N. P. Erugin
%A L. D. Kudryavtsev
%T Sergeĭ L'vovich Sobolev (on his 60th birthday)
%J Differencialʹnye uravneniâ
%D 1968
%P 1724-1730
%V 4
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1968_4_9_a19/
%G ru
%F DE_1968_4_9_a19