TY - JOUR AU - V. E. Plisko TI - Some variants of the notion of realizability for predicate formulas JO - Izvestiya. Mathematics PY - 1978 SP - 588 EP - 604 VL - 12 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1978_12_3_a9/ LA - en ID - IM2_1978_12_3_a9 ER -