1. Linden G.: WebView,
http://www.cs.washington.edu/homes/glinden/WebView/WebView.html
.
2. Battista, G.D., Lillo, R., Vernacotola, F.: PTOLOMAEUS,
http://www.inf.uniroma3.it/vernacot/ptolpage.htm
3. Minami, T., Sazuka H., Hirokawa S., Ohtani T.: Living with ZK-An Approach towards Communication with Analogue Messages, Proc. KES98, Second International Conference on Knowledge-based Intelligent Electronic Systems, (1998) 369–374
4. Sazuka H., Minami T., Hirokawa S.: Internet note pad ZK (in Japanese), Proc. DPS Workshop, Information Processing Society of Japan (1997) 195–199
5. Shiozawa H., Matsushita Y.:WWW visualization giving meanings to interactive manipulations HCI International 97 (1997)
http://www.myo.inst.keio.ac.jp/NattoView/