Dan Maynes-Aminzade Randy Pausch Steven M. Seitz Techniques for Interactive Audience Participation. 15-20 2002 conf/icmi/2002 ICMI http://doi.ieeecomputersociety.org/10.1109/ICMI.2002.1166962 db/conf/icmi/icmi2002.html#Maynes-AminzadePS02