%0 Journal Article
%A N. Yu. Kapustin
%A K. B. Sabitov
%T On the solution of a problem in the theory of the Frankl   problem for equations of mixed type
%J Doklady Akademii Nauk
%D 1991
%P 1048-1052
%V 317
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_317_5_a4/
%G ru
%F DAN_1991_317_5_a4