@article{05875573,
title = {The differential properties of one class of surfaces in Euclidean space.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {50},
year = {2009},
pages = {1148-1162},
zbl = {1224.53009},
language = {en},
url = {http://dml.mathdoc.fr/item/05875573}
}
Reshetnyak, Yu.G. The differential properties of one class of surfaces in Euclidean space.. Sibirskij Matematicheskij Zhurnal, Tome 50 (2009) pp. 1148-1162. http://gdmltest.u-ga.fr/item/05875573/