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@article{MAN_1955__130_160460, author = {G.B. Rizza}, title = {Dirichlet {Problem} for {n-Harmonic} {Functions} and {Related} {Geometrical} {Properties.}}, journal = {Mathematische Annalen}, pages = {202--218}, publisher = {mathdoc}, volume = {130}, year = {1955}, zbl = {0067.33004}, url = {http://geodesic.mathdoc.fr/item/MAN_1955__130_160460/} }
G.B. Rizza. Dirichlet Problem for n-Harmonic Functions and Related Geometrical Properties.. Mathematische Annalen, Tome 130 (1955), pp. 202-218. http://geodesic.mathdoc.fr/item/MAN_1955__130_160460/