%0 Journal Article %A Vajda, Igor %A Nedoma, Petr %T A comparison of three optimality criteria for observation channels %J Kybernetika %D 1973 %P -186 %V 09 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1973__9_3_a2/ %G en %F KYB_1973__9_3_a2