TY - JOUR AU - Yu. A. Alpin AU - R. G. Bukharaev TI - A sufficiency test for nonrepresentability of languages in finite-state probabilistic automata JO - Doklady Akademii Nauk PY - 1975 SP - 777 EP - 780 VL - 223 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1975_223_4_a0/ LA - ru ID - DAN_1975_223_4_a0 ER -