@article{TAC_2013_28_a11, author = {Dany Majard}, title = {n-tuple groupoids and optimally coupled factorizations}, journal = {Theory and applications of categories}, pages = {304--331}, publisher = {mathdoc}, volume = {28}, year = {2013}, language = {en}, url = {http://geodesic.mathdoc.fr/item/TAC_2013_28_a11/} }