Mobie: Personalized Automated Recharge of Prepaid Mobile Phones. - Jeff L. Burgett; Shahzad Hussain; Catholijn M. Jonker; A. Razaq; Karsten Silz (CEEMAS, 2001)

Prospectives of the Benefits of Agent and Semantic Web-Based Wireless Applications for the Elderly User. - Theresa A. O'Connell; Jeff L. Burgett; Catholijn M. Jonker; Karsten Silz (HCI (4), 2003)