@article{CRMATH_2010__348_11-12_665_0,
     author = {Saji, Kentaro and Umehara, Masaaki and Yamada, Kotaro},
     title = {Singularities of {Blaschke} normal maps of convex surfaces},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {665--668},
     publisher = {Elsevier},
     volume = {348},
     number = {11-12},
     year = {2010},
     doi = {10.1016/j.crma.2010.04.021},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2010.04.021/}
}