@article{CRMATH_2004__338_1_13_0,
     author = {Kichenassamy, Satyanad},
     title = {R\'egularit\'e du rayon hyperbolique},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {13--18},
     publisher = {Elsevier},
     volume = {338},
     number = {1},
     year = {2004},
     doi = {10.1016/j.crma.2003.10.037},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2003.10.037/}
}