TY - JOUR AU - Barto, Libor TI - Accessible set functors are universal JO - Commentationes Mathematicae Universitatis Carolinae PY - 2019 SP - 497 EP - 508 VL - 60 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2019.028/ DO - 10.14712/1213-7243.2019.028 LA - en ID - 10_14712_1213_7243_2019_028 ER -