@article{05304371,
title = {Existence criteria and classification schemes for positive solutions of second-order nonlinear difference systems.},
journal = {Discrete Dynamics in Nature and Society},
volume = {2006},
year = {2006},
doi = {10.1155/DDNS/2006/58532},
zbl = {1157.39304},
language = {en},
url = {http://dml.mathdoc.fr/item/05304371}
}
Li, Wan-Tong; Huang, Can-Yun; Cheng, Sui Sun. Existence criteria and classification schemes for positive solutions of second-order nonlinear difference systems.. Discrete Dynamics in Nature and Society, Tome 2006 (2006) . doi : 10.1155/DDNS/2006/58532. http://gdmltest.u-ga.fr/item/05304371/