@article{01550938,
title = {Four-parameter bifurcation for a },
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2001},
year = {2001},
zbl = {0989.35060},
language = {en},
url = {http://dml.mathdoc.fr/item/01550938}
}
Fleckinger, Jacqueline; Pardo, Rosa; de Thélin, François. Four-parameter bifurcation for a . Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2001 (2001) . http://gdmltest.u-ga.fr/item/01550938/