Graphical Multiscale Web Histories: A Study of Padprints. - Ron R. Hightower; Laura T. Ring; Jonathan Helfman; Benjamin B. Bederson; James D. Hollan (Hypertext, 1998)

PadPrints: Graphical Multiscale Web Histories. - Ron R. Hightower; Laura T. Ring; Jonathan Helfman; Benjamin B. Bederson; James D. Hollan (ACM Symposium on User Interface Software and Technology, 1998)