TY - JOUR AU - E. N. Pavlovsky TI - Complexity of Index Sets for Several Classes of Models JO - Sibirskij žurnal čistoj i prikladnoj matematiki PY - 2008 SP - 71 EP - 76 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VNGU_2008_8_1_a6/ LA - ru ID - VNGU_2008_8_1_a6 ER -