@article{VMUMM_1989_1_a25,
     author = {E. B. Yarovaya},
     title = {Pure birth processes in a random environment},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {105--109},
     publisher = {mathdoc},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1989_1_a25/}
}