%0 Journal Article
%A B. M. Levitan
%T Determination of the Sturm--Liouville differential equation by two spectra
%J Doklady Akademii Nauk
%D 1963
%P 474-476
%V 150
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_150_3_a5/
%G ru
%F DAN_1963_150_3_a5