%0 Journal Article
%A E. V. Ferapontov
%T Reciprocal transformations and their invariants
%J Differencialʹnye uravneniâ
%D 1989
%P 1256-1265
%V 25
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1989_25_7_a21/
%G ru
%F DE_1989_25_7_a21