TY - JOUR AU - MichaƂ Korch AU - Tomasz Weiss TI - On the Class of Perfectly Null Sets and Its Transitive Version JO - Bulletin of the Polish Academy of Sciences. Mathematics PY - 2016 SP - 1 EP - 20 VL - 64 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ba8029-5-2016/ DO - 10.4064/ba8029-5-2016 LA - en ID - 10_4064_ba8029_5_2016 ER -