%0 Journal Article
%A S. Kamouche
%A H. Guebbai
%A M. Ghiat
%A S. Segni
%T Generalized quadratic spectrum approximation in bounded and unbounded cases
%J Problemy analiza
%D 2021
%P 53-70
%V 10
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PA_2021_10_3_a4/
%G en
%F PA_2021_10_3_a4