TY - JOUR AU - Roman Sikorski TI - On extensions and products of Boolean algebras JO - Fundamenta Mathematicae PY - 1964 SP - 99 EP - 116 VL - 53 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-53-1-99-116/ DO - 10.4064/fm-53-1-99-116 LA - en ID - 10_4064_fm_53_1_99_116 ER -