@article{02124081,
title = {A combinatorial proof of a result from number theory.},
journal = {Integers},
volume = {4},
year = {2004},
zbl = {1087.11021},
language = {en},
url = {http://dml.mathdoc.fr/item/02124081}
}
Cooper, Shaun; Hirschhorn, Michael. A combinatorial proof of a result from number theory.. Integers, Tome 4 (2004) . http://gdmltest.u-ga.fr/item/02124081/