@article{1102996008,
author = {Orland, George H.},
title = {On non-convex polyhedral surfaces in $E^3$.},
journal = {Pacific J. Math.},
volume = {15},
number = {4},
year = {1965},
pages = { 267-272},
language = {en},
url = {http://dml.mathdoc.fr/item/1102996008}
}
Orland, George H. On non-convex polyhedral surfaces in $E^3$.. Pacific J. Math., Tome 15 (1965) no. 4, pp. 267-272. http://gdmltest.u-ga.fr/item/1102996008/