%0 Journal Article
%A Z. I. Biglov
%T An expansion in eigenfunctions of a system of second order differential equations
%J Doklady Akademii Nauk
%D 1957
%P 797-799
%V 112
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_112_5_a2/
%G ru
%F DAN_1957_112_5_a2