%0 Journal Article %A Zabczyk, Jerzy %T A note on the exponential stability of a matrix Riccati equation of stochastic control %J Kybernetika %D 1975 %P -222 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1975__11_3_a2/ %G en %F KYB_1975__11_3_a2