TY - JOUR AU - M. G. Shur TI - Ratio limit theorems for self-adjoint operators and symmetric Markov chains JO - Teoriâ veroâtnostej i ee primeneniâ PY - 2000 SP - 268 EP - 288 VL - 45 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_2000_45_2_a3/ LA - ru ID - TVP_2000_45_2_a3 ER -