-# Author: Julian Smart, Robert Roebling, Vadim Zeitlin
+# Author: Julian Smart, Robert Roebling, Vadim Zeitlin, Ron Lee
# Copyright:(c) 1993, AIAI, University of Edinburgh,
# Copyright:(c) 1999, Vadim Zeitlin
# Copyright:(c) 1999, Robert Roebling
# Copyright:(c) 1993, AIAI, University of Edinburgh,
# Copyright:(c) 1999, Vadim Zeitlin
# Copyright:(c) 1999, Robert Roebling