Herman Schmit Thomas Kroll Max Khusid Ivan S. Kourtev Narayanan Vijaykrishnan David L. Landis The Sandbox Design Experience Course. 39-40 2003 conf/mse/2003 MSE http://csdl.computer.org/comp/proceedings/mse/2003/1973/00/19730039abs.htm db/conf/mse/mse2003.html#SchmitKKKVL03