%0 Journal Article
%A Zhu Daxin
%T A geometric approach to a result of Benci and Giannoni for Hamiltonian systems with singular potentials.
%J Manuscripta mathematica
%D 1991
%P 405-414
%V 72
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1991__72_1_155649/
%F MM2_1991__72_1_155649