%0 Journal Article
%A Girardi, Mario
%T Multiple orbits for hamiltonian systems on starshaped surfaces with symmetries
%J Annales de l'I.H.P. Analyse non linéaire
%D 1984
%P 285-294
%V 1
%N 4
%I Gauthier-Villars
%U http://archive.numdam.org/item/AIHPC_1984__1_4_285_0/
%G en
%F AIHPC_1984__1_4_285_0