%0 Journal Article %A Kučera, Vladimír %T Algebraic theory of discrete optimal control for single-variable systems. III. Closed-Loop Control %J Kybernetika %D 1973 %P 291-312 %V 9 %N 4 %U http://geodesic.mathdoc.fr/item/KYB_1973_9_4_a5/ %G en %F KYB_1973_9_4_a5