TY - JOUR AU - Raphaƫl Carroy AU - Benjamin D. Miller TI - Sigma-continuity with closed witnesses JO - Fundamenta Mathematicae PY - 2017 SP - 29 EP - 42 VL - 239 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm317-12-2016/ DO - 10.4064/fm317-12-2016 LA - en ID - 10_4064_fm317_12_2016 ER -