@article{05588838,
title = {Existence of weak solutions for nonlinear systems involving several },
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2009},
year = {2009},
zbl = {1175.35043},
language = {en},
url = {http://dml.mathdoc.fr/item/05588838}
}
Khafagy, Salah A.; Serag, Hassan M. Existence of weak solutions for nonlinear systems involving several . Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2009 (2009) . http://gdmltest.u-ga.fr/item/05588838/