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@article{MZ_1966__94_170617, author = {Peter Lappan}, title = {Asymptotic {Values} of {Normal} {Harmonic} {Functions.}}, journal = {Mathematische Zeitschrift}, pages = {152--156}, publisher = {mathdoc}, volume = {94}, year = {1966}, zbl = {0163.14003}, url = {http://geodesic.mathdoc.fr/item/MZ_1966__94_170617/} }
Peter Lappan. Asymptotic Values of Normal Harmonic Functions.. Mathematische Zeitschrift, Tome 94 (1966), pp. 152-156. http://geodesic.mathdoc.fr/item/MZ_1966__94_170617/