%0 Journal Article
%A E. D. Nursultanov
%T Certain properties of the roots of a weakly hyperbolic operator pencil
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1989
%P 78-79
%V 23
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1989_23_1_a15/
%G ru
%F FAA_1989_23_1_a15