PITNER, Tomáš, Michael DERNTL, Thorsten HAMPEL and Renate MOTSCHNIG. Web 2.0 as Platform for Inclusive Universal Access in Cooperative Learning and Knowledge Sharing.
Journal of Universal Computer Science. Graz, Austria: Know-Center, 2007, vol. 2007, No 1, p. 49-56. ISSN 0948-695X.