@article{01482128,
title = {Global minimizing domains for the first eigenvalue of an elliptic operator with non-constant coefficients.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2000},
year = {2000},
zbl = {0958.49024},
language = {en},
url = {http://dml.mathdoc.fr/item/01482128}
}
Bucur, Dorin; Varchon, Nicolas. Global minimizing domains for the first eigenvalue of an elliptic operator with non-constant coefficients.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2000 (2000) . http://gdmltest.u-ga.fr/item/01482128/