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@article{MZ_1984__188_173519, author = {Ernst A. Ruh and Josef Bemelmans and Min-Oo}, title = {Smoothing {Riemannian} {Metrics.}}, journal = {Mathematische Zeitschrift}, pages = {69--74}, publisher = {mathdoc}, volume = {188}, year = {1984}, zbl = {0536.53044}, url = {http://geodesic.mathdoc.fr/item/MZ_1984__188_173519/} }
Ernst A. Ruh; Josef Bemelmans; Min-Oo. Smoothing Riemannian Metrics.. Mathematische Zeitschrift, Tome 188 (1984), pp. 69-74. http://geodesic.mathdoc.fr/item/MZ_1984__188_173519/