%0 Journal Article
%A V. V. Pukhnachov
%T Transformations of equivalence and the hidden symmetry of evolution equations
%J Doklady Akademii Nauk
%D 1987
%P 535-538
%V 294
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1987_294_3_a4/
%G ru
%F DAN_1987_294_3_a4