TY - JOUR AU - L. L. Maksimova TI - The Projective Beth Property and Interpolation in Positive and Related Logics JO - Algebra i logika PY - 2006 SP - 85 EP - 113 VL - 45 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_2006_45_1_a4/ LA - ru ID - AL_2006_45_1_a4 ER -