@article{05171556, title = {Combinatorial proofs of some Simons-type binomial coefficient identities.}, journal = {Integers}, volume = {7}, year = {2007}, zbl = {1123.05004}, language = {en}, url = {http://dml.mathdoc.fr/item/05171556} }
Shattuck, Mark. Combinatorial proofs of some Simons-type binomial coefficient identities.. Integers, Tome 7 (2007) . http://gdmltest.u-ga.fr/item/05171556/