@article{1103037134,
author = {Kalman, J. A.},
title = {Continuity and convexity of projections and barycentric coordinates in convex polyhedra.},
journal = {Pacific J. Math.},
volume = {11},
number = {4},
year = {1961},
pages = { 1017-1022},
language = {en},
url = {http://dml.mathdoc.fr/item/1103037134}
}
Kalman, J. A. Continuity and convexity of projections and barycentric coordinates in convex polyhedra.. Pacific J. Math., Tome 11 (1961) no. 4, pp. 1017-1022. http://gdmltest.u-ga.fr/item/1103037134/