@article{02100310,
title = {Triple positive solutions for the },
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2004},
year = {2004},
zbl = {1057.34010},
language = {en},
url = {http://dml.mathdoc.fr/item/02100310}
}
Karakostas, George L. Triple positive solutions for the . Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2004 (2004) . http://gdmltest.u-ga.fr/item/02100310/