Cassowary Constraint Solving Toolkit was
Implemented by:

Greg J. Badros <gjb@cs.washington.edu> and
Alan Borning <borning@cs.washington.edu>
University of Washington
Computer Science and Engineering
Seattle, WA 98195-2350

with Constraint Drawing Applet (CDA) by Michael Noth <noth@cs.washington.edu>

Please send bug reports to cassowary@cs.washington.edu