TY - JOUR AU - Saharon Shelah TI - Covering of the null ideal may have countable cofinality JO - Fundamenta Mathematicae PY - 2000 SP - 109 EP - 136 VL - 166 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-166-1-2-109-136/ DO - 10.4064/fm-166-1-2-109-136 LA - en ID - 10_4064_fm_166_1_2_109_136 ER -