%0 Journal Article
%A M. Yu. Orekhov
%T On estimates of the computational work in finding the first eigenvalues of some differential operators
%J Doklady Akademii Nauk
%D 1980
%P 34-38
%V 253
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_253_1_a6/
%G ru
%F DAN_1980_253_1_a6