%0 Journal Article
%A N. M. Poluboyarova
%T On instability of extremals of potential energy functional
%J Ufa mathematical journal
%D 2018
%P 77-85
%V 10
%N 3
%U http://geodesic.mathdoc.fr/item/UFA_2018_10_3_a5/
%G en
%F UFA_2018_10_3_a5