%0 Journal Article
%A N. A. Sidel'nikova
%T Deficiency Indices of the Singular Differential Operator Generated by the Expression $y^{\mathrm{IV}}-2a(x^\alpha y')'+bx^\beta y$
%J Matematičeskie zametki
%D 2003
%P 153-156
%V 73
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2003_73_1_a16/
%G ru
%F MZM_2003_73_1_a16