@article{GDZPPN002097400, title = {Harnack Inequalities for Nonuniformly Elliptic Divergence Structure Equations.}, journal = {Inventiones mathematicae}, volume = {64}, year = {1981}, pages = {517-531}, zbl = {0501.35012}, url = {http://dml.mathdoc.fr/item/GDZPPN002097400} }
Trudinger, Neil S. Harnack Inequalities for Nonuniformly Elliptic Divergence Structure Equations.. Inventiones mathematicae, Tome 64 (1981) pp. 517-531. http://gdmltest.u-ga.fr/item/GDZPPN002097400/