TY - JOUR AU - Levy, Paul B. TI - Strong functors on many-sorted sets JO - Commentationes Mathematicae Universitatis Carolinae PY - 2019 SP - 533 EP - 540 VL - 60 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2019.029/ DO - 10.14712/1213-7243.2019.029 LA - en ID - 10_14712_1213_7243_2019_029 ER -