@article{1183525357,
author = {Serrin, James},
title = {A Harnack inequality for nonlinear equations},
journal = {Bull. Amer. Math. Soc.},
volume = {69},
number = {4},
year = {1963},
pages = { 481-486},
language = {en},
url = {http://dml.mathdoc.fr/item/1183525357}
}
Serrin, James. A Harnack inequality for nonlinear equations. Bull. Amer. Math. Soc., Tome 69 (1963) no. 4, pp. 481-486. http://gdmltest.u-ga.fr/item/1183525357/