%0 Journal Article %A Peiffer, K. %T A stability criterion for periodic systems with first integrals %J Rendiconti del Seminario Matematico della Università di Padova %D 1994 %P 165-178 %V 92 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_1994__92__165_0/ %G en %F RSMUP_1994__92__165_0