@article{DM_2000_12_4_a2,
     author = {B. A. Sevast'yanov},
     title = {Sojourn times in a finite set of states of {Markov} branching processes and the probabilities of extinction of a modified {Galton--Watson} process},
     journal = {Diskretnaya Matematika},
     pages = {39--45},
     publisher = {mathdoc},
     volume = {12},
     number = {4},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2000_12_4_a2/}
}