@article{TVP_1981_26_3_a17,
     author = {M. Yu. Kitaev},
     title = {The existence of optimal stationary policies for semicontinuous {semi-Markov} decision models with respect to the average cost criterion},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {627--629},
     year = {1981},
     volume = {26},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1981_26_3_a17/}
}