@article{02214417,
title = {Two very short proofs of combinatorial identity.},
journal = {Integers},
volume = {5},
year = {2005},
zbl = {1102.11013},
language = {en},
url = {http://dml.mathdoc.fr/item/02214417}
}
Anglani, Roberto; Barile, Margherita. Two very short proofs of combinatorial identity.. Integers, Tome 5 (2005) . http://gdmltest.u-ga.fr/item/02214417/