@article{TAC_2025_44_a13,
     author = {John C. Baez},
     title = {Groupoid cardinality and random permutations},
     journal = {Theory and applications of categories},
     pages = {410--419},
     publisher = {mathdoc},
     volume = {44},
     year = {2025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2025_44_a13/}
}