%0 Journal Article %A Ježek, Jan %T Non-commutative rings of fractions in algebraical approach to control theory %J Kybernetika %D 1996 %P 81-94 %V 32 %N 1 %U http://geodesic.mathdoc.fr/item/KYB_1996_32_1_a4/ %G en %F KYB_1996_32_1_a4