TY - JOUR AU - A. M. Fedotov TI - The information inequality for operator equations in Hilbert space JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1981 SP - 377 EP - 384 VL - 26 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_1981_26_2_a11/ LA - ru ID - TVP_1981_26_2_a11 ER -