%0 Journal Article
%A V. G. Prikazchikov
%T Efficient improvement of the accuracy of calculating eigenvalues
%J Differencialʹnye uravneniâ
%D 1989
%P 1821-1823
%V 25
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1989_25_10_a28/
%G ru
%F DE_1989_25_10_a28