Thanks to João Silva for sending me this video.
by William Forsythe, Maria Palazzi and Norah Zuniga Sha.
Authoring, viewing, and generating hypervideo: An overview of Hyper-Hitchcock by Frank Shipman, Andreas Girgensohn, and Lynn Wilcox.
Pen-Based Video Annotations: A Proposal and a Prototype for Tablet PCs by Diogo Cabral and Nuno Correia.
Interact2009,24-28 August, Uppsala, Sweden.