--- /dev/null
+Copyright 1999 University of North Carolina at Chapel Hill.
+All rights reserved.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for educational, research, and non-profit purposes, without fee,
+and without a written agreement is hereby granted, provided that the above
+copyright notice and the following three paragraphs appear in all copies.
+
+IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL BE LIABLE TO
+ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
+INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
+DOCUMENTATION, EVEN IF THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL SPECIFICALLY DISCLAIMS ANY
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED
+HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF NORTH CAROLINA AT
+CHAPEL HILL HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ENHANCEMENTS, OR MODIFICATIONS.
+
+The authors may be contacted via:
+
+US Mail: Eric Larsen, Stefan Gottschalk
+ Department of Computer Science
+ Sitterson Hall, CB #3175
+ University of North Carolina
+ Chapel Hill, NC 27599-3175
+
+Phone: (919) 962-1749
+
+Email: geom@cs.unc.edu
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