@article{EJDE_2001__2001__a182,
     author = {Bhattacharya,  Tilak},
     title = {An elementary proof of the {Harnack} inequality for non-negative infinity-superharmonic functions},
     journal = {Electronic journal of differential equations},
     year = {2001},
     volume = {2001},
     zbl = {0966.35052},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a182/}
}