%0 Journal Article
%A V. V. Kurta
%T Phragmen--Lindel\"of theorems for second-order semilinear equations with nonnegative characteristic form
%J Matematičeskie zametki
%D 1992
%P 62-67
%V 52
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1992_52_1_a9/
%G ru
%F MZM_1992_52_1_a9