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@article{JRAM_1977__291_151859, author = {Mitsuru Nakai and Leo Sario}, title = {On {Hadamard's} problem for higher dimensions.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {145--148}, publisher = {mathdoc}, volume = {291}, year = {1977}, zbl = {0345.31007}, url = {http://geodesic.mathdoc.fr/item/JRAM_1977__291_151859/} }
Mitsuru Nakai; Leo Sario. On Hadamard's problem for higher dimensions.. Journal für die reine und angewandte Mathematik, Tome 291 (1977), pp. 145-148. http://geodesic.mathdoc.fr/item/JRAM_1977__291_151859/