@article{CRMATH_2002__335_7_609_0,
     author = {Ciarlet, Philippe G.},
     title = {A surface is a continuous function of its two fundamental forms},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {609--614},
     publisher = {Elsevier},
     volume = {335},
     number = {7},
     year = {2002},
     doi = {10.1016/S1631-073X(02)02538-4},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/S1631-073X(02)02538-4/}
}