@article{10_21136_CMJ_1992_128308,
     author = {Vesel\'y, Petr},
     title = {Two contributions to the theory of coefficients of ergodicity},
     journal = {Czechoslovak Mathematical Journal},
     pages = {73--88},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1992},
     doi = {10.21136/CMJ.1992.128308},
     mrnumber = {1152171},
     zbl = {0754.60072},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1992.128308/}
}