%0 Journal Article
%A S. R. Svirshchevskii
%T Group classification and invariant solutions of nonlinear polyharmonic equations
%J Differencialʹnye uravneniâ
%D 1993
%P 1772-1781
%V 29
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1993_29_10_a12/
%G ru
%F DE_1993_29_10_a12