TY - JOUR AU - J. Płonka TI - On mixed product of Boolean algebras JO - Colloquium Mathematicum PY - 1971 SP - 29 EP - 32 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-23-1-29-32/ DO - 10.4064/cm-23-1-29-32 LA - en ID - 10_4064_cm_23_1_29_32 ER -