%0 Journal Article
%A Yu. V. Egorov
%A V. A. Kondratiev
%T Estimate of the first eigenvalue of a selfadjoint elliptic operator
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1983
%P 46-52
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1983_3_a8/
%G ru
%F VMUMM_1983_3_a8