%0 Journal Article
%A E. I. Nikol'skaya
%T An estimate for the difference of partial sums of expansions of an absolutely continuous function in root functions corresponding to two one-dimensional Schr\"odinger operators with complex-valued potentials in the class $L_1$
%J Differencialʹnye uravneniâ
%D 1992
%P 598-612
%V 28
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1992_28_4_a6/
%G ru
%F DE_1992_28_4_a6