David Bargeron Anoop Gupta Jonathan Grudin Elizabeth Sanocki Francis C. Li Asynchronous Collaboration around Multimedia and its Application to On-Demand Training. 2001 HICSS http://computer.org/proceedings/hicss/0981/volume%204/09814042abs.htm db/conf/hicss/hicss2001-4.html#BargeronGGSL01