%0 Journal Article %A Soukup, Václav %T On formulation of state equations for linear nonstationary discrete-time system %J Kybernetika %D 1972 %P 419-429 %V 8 %N 5 %U http://geodesic.mathdoc.fr/item/KYB_1972_8_5_a4/ %G en %F KYB_1972_8_5_a4