%0 Journal Article
%A A. L. Ageev
%T The method of quasi-solutions for the problem of determining the eigenfunctions of a linear operator
%J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
%D 1987
%P 643-650
%V 27
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_5_a0/
%G ru
%F ZVMMF_1987_27_5_a0