David Bargeron Anoop Gupta Jonathan Grudin Elizabeth Sanocki Annotations for Streaming Video on the Web: System Design and Usage Studies. 1139-1153 1999 31 Computer Networks 11-16 db/journals/cn/cn31.html#BargeronGGS99 http://dx.doi.org/10.1016/S1389-1286(99)00058-4