1. Interworking architecture between 3GPP and WLAN systems;Ahmavaara;IEEE Communications Magazine,2003
2. A new view of Telecommunications Economics;Alleman;Telecommunications Policy,2002
3. Camponovo, G, Heitmann, M., Stanoevska-Slabeva, K., Pigneur, Y. 2003. Exploring the WISP Industry: Swiss case study, 16th Bled Electronic Commerce Conference, Slovenia; 1–14.
4. Investment Valuation: Tools and techniques for determining the value of any asset;Domodaran,2002
5. Hotspot Wireless LANs to enhance the performance of 3G and beyond cellular networks;Doufexi;IEEE Communications Magazine,2003