%0 Journal Article %A Kučera, Vladimír %T The discrete Riccati equation of optimal control %J Kybernetika %D 1972 %P -447 %V 08 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1972__8_5_a5/ %G en %F KYB_1972__8_5_a5