TY - JOUR AU - Zhikica Perovich TI - Relatively Complete 2-Extensions of Boolean Algebras JO - Mathematica balkanica PY - 1992 SP - 125 VL - 6 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_1992_6_2_a2/ ID - MABA_1992_6_2_a2 ER -