%0 Journal Article
%A Françoise, J. P.
%A Ragnisco, O.
%T Matrix second-order differential equations and hamiltonian systems of quartic type
%J Annales de l'I.H.P. Physique théorique
%D 1989
%P 369-375
%V 50
%N 3
%I Gauthier-Villars
%U http://www.numdam.org/item/AIHPA_1989__50_3_369_0/
%G en
%F AIHPA_1989__50_3_369_0