TY - JOUR AU - V. V. Anisimov TI - Limit theorems for semi-Markov processes with a countable set of states JO - Doklady Akademii Nauk PY - 1970 SP - 503 EP - 505 VL - 193 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_193_3_a0/ LA - ru ID - DAN_1970_193_3_a0 ER -