@article{hal-00004709,
author = {Busca, Jerome and Sirakov, Boyan},
title = {Harnack type estimates for nonlinear elliptic systems},
journal = {HAL},
volume = {2004},
number = {0},
year = {2004},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-00004709}
}
Busca, Jerome; Sirakov, Boyan. Harnack type estimates for nonlinear elliptic systems. HAL, Tome 2004 (2004) no. 0, . http://gdmltest.u-ga.fr/item/hal-00004709/