@article{1029003946,
author = {Han, Chong-Kyu},
title = {Regularity of certain rigid isometric immersions of $n$-dimensional Riemannian manifolds into ${\bf R}^{n+1}$.},
journal = {Michigan Math. J.},
volume = {36},
number = {1},
year = {1989},
pages = { 245-250},
language = {en},
url = {http://dml.mathdoc.fr/item/1029003946}
}
Han, Chong-Kyu. Regularity of certain rigid isometric immersions of $n$-dimensional Riemannian manifolds into ${\bf R}^{n+1}$.. Michigan Math. J., Tome 36 (1989) no. 1, pp. 245-250. http://gdmltest.u-ga.fr/item/1029003946/