TY - JOUR AU - Ježek, Jan TI - Non-commutative rings of fractions in algebraical approach to control theory JO - Kybernetika PY - 1996 SP - 81 EP - 94 VL - 32 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1996__32_1_a4/ LA - en ID - KYB_1996__32_1_a4 ER -