Copyright 2002 by Dor Abrahamson and Uri Wilensky. All rights reserved. Permission to use, copy, or modify this software and its associated documentation, models and curricular materials for educational and research purposes only and without fee is hereby granted, provided that this copyright notice and the original authors' names appear on all copies and supporting documentation. For any other uses of this software, in original or modified form, including, but not limited to distribution in whole or in part, specific prior permission must be obtained from Dor Abrahamson and Uri Wilensky. These programs shall not be used, rewritten, or adapted as the basis of a commercial or hardware product without first obtaining appropriate licenses from Dor Abrahamson and Uri Wilensky. We make no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

NetLogo ©1999 by Uri Wilensky. http://ccl.northwestern.edu/netlogo/.