@article{DAN_1969_189_5_a6,
     author = {D. S. Sil'vestrov},
     title = {Asymptotic behavior of the time of attainment for sums of random values controlled by a regular {semi-Markov} process},
     journal = {Doklady Akademii Nauk},
     pages = {949--951},
     publisher = {mathdoc},
     volume = {189},
     number = {5},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_189_5_a6/}
}