TY - JOUR AU - Yu. Sh. Gurevich TI - Effective recognition of realizability of formulae of the JO - Algebra i logika PY - 1966 SP - 25 EP - 55 VL - 5 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1966_5_2_a1/ LA - ru ID - AL_1966_5_2_a1 ER -