%0 Journal Article %A VeselĂ˝, Petr %T Two contributions to the theory of coefficients of ergodicity %J Czechoslovak Mathematical Journal %D 1992 %P 73-88 %V 42 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1992.128308/ %R 10.21136/CMJ.1992.128308 %G en %F 10_21136_CMJ_1992_128308