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@article{MAN_1968__177_161712, author = {J. K\"OHN and M. SIEVEKING}, title = {Zum {Cauchyschen} und {Dirichletschen} {Problem.}}, journal = {Mathematische Annalen}, pages = {133--142}, publisher = {mathdoc}, volume = {177}, year = {1968}, zbl = {0165.13003}, url = {http://geodesic.mathdoc.fr/item/MAN_1968__177_161712/} }
J. KÖHN; M. SIEVEKING. Zum Cauchyschen und Dirichletschen Problem.. Mathematische Annalen, Tome 177 (1968), pp. 133-142. http://geodesic.mathdoc.fr/item/MAN_1968__177_161712/