%0 Journal Article
%A V. I. Bliznikas
%A Z. Yu. Lupeikis
%T The geometry of certain systems of partial differential equations
%J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara
%D 1974
%P 135-168
%V 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTG_1974_5_a5/
%G ru
%F INTG_1974_5_a5