Chunyuan Liao, François Guimbretière, Corinna E. Löckenhoff. Pen-top feedback for paper-based interfaces. In Pierre Wellner, Ken Hinckley, editors, Proceedings of the 19th Annual ACM Symposium on User Interface Software and Technology, Montreux, Switzerland, October 15-18, 2006. pages 201-210, ACM, 2006. [doi]
Abstract is missing.