%0 Journal Article
%A A. V. Makhorkin
%T The normal form on an invariant surface of a completely integrable Pfaffian system
%J Differencialʹnye uravneniâ
%D 1984
%P 1824-1827
%V 20
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_10_a25/
%G ru
%F DE_1984_20_10_a25