TY - JOUR AU - B. P. Alimpić TI - On models of certain formulas of the predicate calculus of first order JO - Matematički vesnik PY - 1968 SP - 347 VL - 20 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MV_1968_20_3_a16/ ID - MV_1968_20_3_a16 ER -