%0 Journal Article
%A O. Ya. Savchenko
%T Two-sided estimates for the eigenvalues of the Dirac equation and its analogues
%J Differencialʹnye uravneniâ
%D 1993
%P 2190-2192
%V 29
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1993_29_12_a16/
%G ru
%F DE_1993_29_12_a16