%0 Journal Article %A Grasselli, Osvaldo Maria %A Longhi, Sauro %A Tornambè, Antonio %T Periodic systems largely system equivalent to periodic discrete-time processes %J Kybernetika %D 2001 %P [1] %V 37 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2001__37_1_a0/ %G en %F KYB_2001__37_1_a0