1. Ahmad A, Chandler R, Dharmakhikari A A, Sengupta U (2003) SIM-Based WLAN Authentication for Open Platforms. Technology @ Intel Magazine, August 2003.
2. Ali Eldin A M T (2006) Private Information Sharing Under Uncertainty: Dynamic Consent Decision-Making Mechanisms. Unpublished dissertation, Delft University of Technology, Delft, The Netherlands.
3. Alt R, Zimmermann H-D (2001) Preface: Introduction to Special Section – Business Models. Electronic Markets 11 (1): 3–9.
4. AtosOrigin (2006) Meeting the billing challenge for the Telecom Industry. [Electronic Version]. AtosOriging White Paper.
http://www.atosorigin.com/NR/rdonlyres/C5BDE4DF-13F6-4EB3-86A0-3519F46DC958/0/wp_telco_billing.pdf
.
5. Berger S, McFaddin S, Narayanaswami C, Raghunath M (2003) Web Services on Mobile Devices – Implementation and Experience. Paper presented at the Fifth IEEE Workshop on Mobile Computing Systems & Applications, Montery, CA.