TY - JOUR AU - A. D. Solov'ev TI - A~combinatorial identity and its application to the problem about the first occurence of a~rare event JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1966 SP - 313 EP - 320 VL - 11 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1966_11_2_a5/ LA - ru ID - TVP_1966_11_2_a5 ER -