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@article{MS2_1963__12_165839, author = {Bent Fuglede}, title = {The {Symmetric} {Normal} {Derivative} of a {Subharmonic} {Function} {II.}}, journal = {Mathematica Scandinavica}, pages = {129--146}, publisher = {mathdoc}, volume = {12}, year = {1963}, zbl = {0123.29103}, url = {http://geodesic.mathdoc.fr/item/MS2_1963__12_165839/} }
Bent Fuglede. The Symmetric Normal Derivative of a Subharmonic Function II.. Mathematica Scandinavica, Tome 12 (1963), pp. 129-146. http://geodesic.mathdoc.fr/item/MS2_1963__12_165839/