%0 Journal Article
%A V. A. Il'in
%A E. I. Moiseev
%T A mean-value formula for root functions of the Schr\"odinger operator
%J Differencialʹnye uravneniâ
%D 1991
%P 702-705
%V 27
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_4_a19/
%G ru
%F DE_1991_27_4_a19