%0 Journal Article
%A V. R. Portnov
%T The first boundary value problem for a class of equations and systems
%J Doklady Akademii Nauk
%D 1966
%P 28-31
%V 168
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1966_168_1_a5/
%G ru
%F DAN_1966_168_1_a5