Vasudha Chandrasekaran Sriram Mohan Om Prakash Pathipaka Sidharth Saxena WeINteract: a pervasive audience participation system. 1700-1704 2004 conf/chi/2004a CHI Extended Abstracts http://doi.acm.org/10.1145/985921.986190 db/conf/chi/chi2004a.html#ChandrasekaranMPS04