@article{05561915,
title = {Annulus oscillation criteria for second order nonlinear elliptic differential equations with damping.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2009},
year = {2009},
zbl = {1177.35083},
language = {en},
url = {http://dml.mathdoc.fr/item/05561915}
}
Zhuang, Rong-Kun. Annulus oscillation criteria for second order nonlinear elliptic differential equations with damping.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2009 (2009) . http://gdmltest.u-ga.fr/item/05561915/