@article{TAC_2020_35_a0,
     author = {Antonin Delpeuch},
     title = {The word problem for double categories},
     journal = {Theory and applications of categories},
     pages = {1--18},
     publisher = {mathdoc},
     volume = {35},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2020_35_a0/}
}