%0 Journal Article
%A I. Ya. Viner
%T Partial differential equations with involutions
%J Differencialʹnye uravneniâ
%D 1970
%P 1320-1322
%V 6
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1970_6_7_a23/
%G ru
%F DE_1970_6_7_a23