%0 Journal Article
%A V. I. Gromak
%T B\"acklund transformations of nonlinear equations
%J Differencialʹnye uravneniâ
%D 1993
%P 1067-1068
%V 29
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1993_29_6_a19/
%G ru
%F DE_1993_29_6_a19