TY - JOUR AU - Chajda, Ivan TI - Extensions of mappings of finite Boolean algebras to homomorphisms JO - Archivum mathematicum PY - 1973 SP - 22 EP - 25 VL - 09 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1973__9_1_a3/ LA - en ID - ARM_1973__9_1_a3 ER -