%0 Journal Article
%A V. A. Erovenko
%T Selfadjointness of a differential operator with periodic coefficients
%J Differencialʹnye uravneniâ
%D 1983
%P 380-387
%V 19
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1983_19_3_a1/
%G ru
%F DE_1983_19_3_a1