@article{UZMU_1951_148_148_a5,
     author = {A. N. Kolmogorov},
     title = {On the differentiability of the transition probabilities in stationary {Markov} processes with a denumberable number of states},
     journal = {Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta},
     pages = {53--59},
     publisher = {mathdoc},
     volume = {148},
     number = {148},
     year = {1951},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZMU_1951_148_148_a5/}
}