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@article{EJDE_2005__2005__a69, author = {Mikayelyan, Hayk}, title = {Example of an $\infty$-harmonic function which is not $C^2$ on a dense subset}, journal = {Electronic Journal of Differential Equations}, publisher = {mathdoc}, volume = {2005}, year = {2005}, language = {en}, url = {http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a69/} }
Mikayelyan, Hayk. Example of an $\infty$-harmonic function which is not $C^2$ on a dense subset. Electronic Journal of Differential Equations, Tome 2005 (2005). http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a69/