%0 Journal Article
%A E. P. Bogomolova
%A A. S. Pechentsov
%T Basic properties of the system of eigenfunctions of a boundary value problem with a multiple root of the characteristic polynomial
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1989
%P 17-22
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1989_4_a4/
%G ru
%F VMUMM_1989_4_a4