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@article{MZ_1986__193_173781, author = {U. Pinkall}, title = {Inequalities of {Willmore} {Type} for {Submanifolds.}}, journal = {Mathematische Zeitschrift}, pages = {241--246}, publisher = {mathdoc}, volume = {193}, year = {1986}, zbl = {0602.53039}, url = {http://geodesic.mathdoc.fr/item/MZ_1986__193_173781/} }
U. Pinkall. Inequalities of Willmore Type for Submanifolds.. Mathematische Zeitschrift, Tome 193 (1986), pp. 241-246. http://geodesic.mathdoc.fr/item/MZ_1986__193_173781/