%0 Journal Article
%A M. V. Tuvaev
%T A ``dead zone'' theorem for the Neumann problem
%J Differencialʹnye uravneniâ
%D 1998
%P 1140-1141
%V 34
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1998_34_8_a18/
%G ru
%F DE_1998_34_8_a18