%0 Journal Article %A Colaneri, Patrizio %T Continuous-time periodic systems in $H_2$ and $H_\infty$. Part I: Theoretical aspects %J Kybernetika %D 2000 %P [211] %V 36 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2000__36_2_a4/ %G en %F KYB_2000__36_2_a4