@article{01283605,
title = {Surface normals and barycentric coordinates.},
journal = {Mathematical Problems in Engineering},
volume = {2},
year = {1996},
pages = {487-497},
doi = {10.1155/S1024123X96000440},
zbl = {0943.53005},
language = {en},
url = {http://dml.mathdoc.fr/item/01283605}
}
Mullineux, Glen. Surface normals and barycentric coordinates.. Mathematical Problems in Engineering, Tome 2 (1996) pp. 487-497. doi : 10.1155/S1024123X96000440. http://gdmltest.u-ga.fr/item/01283605/