@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/