Normal Bounds for Subdivision-Surface Interference Detection Eitan Grinspun, Schröder, IEEE VIS '01: Proceedings of the conference on Visualization '01, pp.333-340, 2001.
@Article{CG_0014,
author = {Eitan Grinspun and Schr{\"{o}}der},
title = {{N}ormal {B}ounds for {S}ubdivision-{S}urface {I}nterference {D}etection },
journal = {IEEE VIS '01: Proceedings of the conference on Visualization '01},
pages = {333--340},
month = {Oct},
year = {2001}
}