@article{1153494223, author = {Ando, Naoya}, title = {An isolated umbilical point of a Willmore surface}, journal = {Osaka J. Math.}, volume = {41}, number = {1}, year = {2004}, pages = { 865-876}, language = {en}, url = {http://dml.mathdoc.fr/item/1153494223} }
Ando, Naoya. An isolated umbilical point of a Willmore surface. Osaka J. Math., Tome 41 (2004) no. 1, pp. 865-876. http://gdmltest.u-ga.fr/item/1153494223/