Marshall Wayne Bern,
Scott A. Mitchell,
and Jim Ruppert
Discrete & Computational Geometry 14:411–428, 1995
RNR Technical Report, NASA, Ames Research Ctr., Feb 1994
Proc. 10th Symp. Computational Geometry, ACM, Jun 1994, pp. 221–230
http://www.nas.nasa.gov/NAS/TechReports/RNRreports/jruppert/RNR-94-003/RNR-94-003.html
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