%0 Journal Article
%A Yu. Sh. Abramov
%T Variational principles for nonlinear eigenvalue problems
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1973
%P 76-77
%V 7
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1973_7_4_a7/
%G ru
%F FAA_1973_7_4_a7