@article{10_37236_11186, author = {Nicholas Proudfoot}, title = {A type {\(B\)} analogue of the category of finite sets with surjections}, journal = {The electronic journal of combinatorics}, year = {2022}, volume = {29}, number = {3}, doi = {10.37236/11186}, zbl = {1507.18008}, url = {http://geodesic.mathdoc.fr/articles/10.37236/11186/} }