%0 Journal Article
%A G. A. Kalyabin
%T On the number of solutions of a self-adjoint system of second-order differential equations in $L_2(0,\infty)$
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1972
%P 74-76
%V 6
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1972_6_3_a14/
%G ru
%F FAA_1972_6_3_a14