Thanks to Brent Benson for libscheme, and to Hans Boehm and John Ellis for the conservative garbage collector and their help.
Thanks also to Shriram Krishnamurthi, Matthias Felleisen, Cormac Flanagan, Robby Findler, Sebastian Good, Bruce Duba, and many others for feedback and help.
Some typesetting sources were originally taken from Julian Smart's Reference Manual for wxWindows 1.60: a portable C++ GUI toolkit.