@article{EJDE_1998__1998__a31,
     author = {Rosset,  Edi},
     title = {Symmetry and convexity of level sets of solutions to the infinity {Laplace's} equation},
     journal = {Electronic journal of differential equations},
     year = {1998},
     volume = {1998},
     zbl = {0911.35010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1998__1998__a31/}
}