@article{05825764,
title = {Positive solutions of },
journal = {Boundary Value Problems [electronic only]},
volume = {2011},
year = {2011},
doi = {10.1155/2011/456426},
zbl = {1213.34046},
language = {en},
url = {http://dml.mathdoc.fr/item/05825764}
}
Feng, Meiqiang; Zhang, Xuemei; Yang, Xiaozhong. Positive solutions of . Boundary Value Problems [electronic only], Tome 2011 (2011) . doi : 10.1155/2011/456426. http://gdmltest.u-ga.fr/item/05825764/