TY - JOUR AU - T. A. Belkina AU - V. I. Rotar' TI - On optimality in probability and almost surely for processes with a communication property. I.~The discrete time case JO - Teoriâ veroâtnostej i ee primeneniâ PY - 2005 SP - 3 EP - 26 VL - 50 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_2005_50_1_a0/ LA - ru ID - TVP_2005_50_1_a0 ER -