@article{CRMATH_2010__348_23-24_1307_0,
     author = {Martinez-Maure, Yves},
     title = {D\'erivation des surfaces convexes de $ {\mathbb{R}}^{3}$ dans l'espace de {Lorentz} et \'etude de leurs focales},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1307--1310},
     publisher = {Elsevier},
     volume = {348},
     number = {23-24},
     year = {2010},
     doi = {10.1016/j.crma.2010.10.029},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2010.10.029/}
}