1. AARRENIEMI-JOKIPELTO P. AND KALLI S. 2006. Open standard-based digital TV browser in t-learning In Interactive Television the Media Landscape the Users and the Applications T. Rasmussen and J. Jensen (eds.). AARRENIEMI-JOKIPELTO P. AND KALLI S. 2006. Open standard-based digital TV browser in t-learning In Interactive Television the Media Landscape the Users and the Applications T. Rasmussen and J. Jensen (eds.).
2. AARRENIEMI-JOKIPELTO P. 2006b. Modelling and content production of distance learning concept for interactive digital television Unpublished doctoral dissertation Helsinki University of Technology. AARRENIEMI-JOKIPELTO P. 2006b. Modelling and content production of distance learning concept for interactive digital television Unpublished doctoral dissertation Helsinki University of Technology.
3. AOL. 2005. AOL instant messenger. http://www.aim.com/index.adp. Sept. 30. AOL. 2005. AOL instant messenger. http://www.aim.com/index.adp. Sept. 30.