TY - JOUR AU - Grasselli, Osvaldo Maria AU - Longhi, Sauro AU - Tornambè, Antonio TI - On obtaining the time-invariant associated system of a periodic system through system equivalence JO - Kybernetika PY - 1995 SP - 649 EP - 655 VL - 31 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1995__31_6_a11/ LA - en ID - KYB_1995__31_6_a11 ER -