%0 Journal Article
%A I. S. Sargsyan
%T Two-sided asymptotics of the number of proper values of a~nonsemibounded Dirac operator
%J Izvestiya. Mathematics 
%D 1972
%P 1381-1420
%V 6
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1972_6_6_a8/
%G en
%F IM2_1972_6_6_a8