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@article{MZ_1961__75_169917, author = {Philip Hartman and Calvin Wilcox}, title = {On solutions of the {Helmholtz} equation in exterior domains.}, journal = {Mathematische Zeitschrift}, pages = {228--255}, publisher = {mathdoc}, volume = {75}, year = {1961}, zbl = {0096.07601}, url = {http://geodesic.mathdoc.fr/item/MZ_1961__75_169917/} }
Philip Hartman; Calvin Wilcox. On solutions of the Helmholtz equation in exterior domains.. Mathematische Zeitschrift, Tome 75 (1961), pp. 228-255. http://geodesic.mathdoc.fr/item/MZ_1961__75_169917/