@article{10_14712_1213_7243_2019_029,
     author = {Levy, Paul B.},
     title = {Strong functors on many-sorted sets},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {533--540},
     publisher = {mathdoc},
     volume = {60},
     number = {4},
     year = {2019},
     doi = {10.14712/1213-7243.2019.029},
     mrnumber = {4061361},
     zbl = {07177888},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2019.029/}
}