1. Bar, F., 2004. Divergent Patterns of Global Innovation: Wi-Fi in the US. Annenberg School for Communication, University of Southern California, USA, presented ENST, Paris, April.
2. Budde, Paul, 2005, South-Korea-Broadband-Networks, 2005, http://www.budde.com.au/Reports/Contents/South-Korea-Broadband-Networks-and-Services-2633.html.
3. Earthlink, 2006. SK Telecom And Earthlink Announce Joint Venture To Form National Wireless Provider; Agreement Marks First US Market Entry for SK Telecom, the Leading Wireless Carrier in Korea, EarthLink Press release, Atlanta and Seoul, January 26, 2005 http://www.gps-practice-and-fun.com/archived-gps-wireless-news-2005.html Alternate: http://www.earthlink.net/about/press/sk-earthlink/,.
4. Busan looks to a ubiquitous future;Fifield;Financial Times,2005
5. Freed from Daewoo;Ihlwan;Business Week,2003