%0 Journal Article %A Šujan, Štefan %T A local structure of stationary perfectly noiseless codes between stationary non-ergodic sources. I. General considerations %J Kybernetika %D 1982 %P 361-375 %V 18 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1982__18_5_a0/ %G en %F KYB_1982__18_5_a0