@article{05577874,
title = {Towards a human proof of Gessel's conjecture.},
journal = {Journal of Integer Sequences [electronic only]},
volume = {12},
year = {2009},
zbl = {1165.05304},
language = {en},
url = {http://dml.mathdoc.fr/item/05577874}
}
Ayyer, Arvind. Towards a human proof of Gessel's conjecture.. Journal of Integer Sequences [electronic only], Tome 12 (2009) . http://gdmltest.u-ga.fr/item/05577874/