%0 Journal Article %A Winkelbauer, Karel %T On the regularity condition for decomposable communication channels %J Kybernetika %D 1971 %P -327 %V 07 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1971__7_4_a3/ %G en %F KYB_1971__7_4_a3