@article{SLC_2017_78B_a38,
     author = {Nicolas Borie},
     title = {Three-Dimensional {Catalan} {Numbers} and {Product-Coproduct} {Prographs}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {78B},
     year = {2017},
     url = {http://geodesic.mathdoc.fr/item/SLC_2017_78B_a38/}
}