%0 Journal Article
%A V. I. Gorbachev
%T Problems on eigenvalues for ordinary differential equations of the second order with variable coefficients
%J Čebyševskij sbornik
%D 2021
%P 353-367
%V 22
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CHEB_2021_22_3_a20/
%G ru
%F CHEB_2021_22_3_a20