@article{TVP_1977_22_1_a12,
     author = {V. A. Vatutin},
     title = {Asymptotic behaviour of the non-extinction probability for a~critical branching process},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {143--149},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1977_22_1_a12/}
}