D. Schall, C. Dorn, S. Dustdar:
"Wireless Internet: Applications";
in: "Encyclopedia of Wireless and Mobile Communications", B. Furht (ed.); Auerbach Publications, Boca Raton, 2008, ISBN: 978-1-4200-5566-5, 1339 - 1345.
http://dx.doi.org/10.1081/E-EWMC-120043505