%0 Journal Article %A Longhi, Sauro %A Orlando, Giuseppe %T Balanced reduction of linear periodic systems %J Kybernetika %D 1999 %P 737-751 %V 35 %N 6 %U http://geodesic.mathdoc.fr/item/KYB_1999_35_6_a6/ %G en %F KYB_1999_35_6_a6