TY - JOUR AU - N. T. Kogabaev TI - $\Pi^1_1$-completeness of the computable categoricity problem JO - Algebra i logika PY - 2016 SP - 432 EP - 440 VL - 55 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2016_55_4_a2/ LA - ru ID - AL_2016_55_4_a2 ER -