@article{10_21136_CPM_1971_117721,
     author = {Marek, Ivo},
     title = {A note on ${\cal K}$-stochastic operators},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {239--244},
     publisher = {mathdoc},
     volume = {096},
     number = {3},
     year = {1971},
     doi = {10.21136/CPM.1971.117721},
     mrnumber = {0317079},
     zbl = {0221.60037},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1971.117721/}
}