TY - JOUR AU - V. A. Vatutin TI - Asymptotic behaviour of the non-extinction probability for a~critical branching process JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1977 SP - 143 EP - 149 VL - 22 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1977_22_1_a12/ LA - ru ID - TVP_1977_22_1_a12 ER -