@article{01125947,
title = {A spectral problem with an indefinite weight for an elliptic system.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {1997},
year = {1997},
zbl = {0891.35107},
language = {en},
url = {http://dml.mathdoc.fr/item/01125947}
}
Sango, Mamadou. A spectral problem with an indefinite weight for an elliptic system.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 1997 (1997) . http://gdmltest.u-ga.fr/item/01125947/