@article{02248146, title = {Combinatorics of partial derivatives.}, journal = {The Electronic Journal of Combinatorics [electronic only]}, volume = {13}, year = {2006}, zbl = {1080.05006}, language = {en}, url = {http://dml.mathdoc.fr/item/02248146} }
Hardy, Michael. Combinatorics of partial derivatives.. The Electronic Journal of Combinatorics [electronic only], Tome 13 (2006) . http://gdmltest.u-ga.fr/item/02248146/