%0 Journal Article %A Kučera, Vladimír %T Special issue: System Structure and Control. I %J Kybernetika %D 1993 %V 29 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1993__29_5_a0/ %G en %F KYB_1993__29_5_a0