@article{00907655,
title = {A short WZ-style proof of Abel's identity.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {3},
year = {1996},
zbl = {0851.05010},
language = {en},
url = {http://dml.mathdoc.fr/item/00907655}
}
Ekhad, Shalosh B.; Majewicz, John E. A short WZ-style proof of Abel's identity.. The Electronic Journal of Combinatorics [electronic only], Tome 3 (1996) . http://gdmltest.u-ga.fr/item/00907655/