2K. Al-Begain; I. Awang; D. D. Kouvatsos. Analysis of GSM/GPRS cell with multiple data service classes. Wireless Personal Communications 2003; ( 1 ).
3D.D. Kouvatsos; I. Awan; K. Al-Begain. Performance modelling of GPRS with bursty multiclass traffic. IEE Proceedings. Part E, Computers and Digital Techniques 2003;(2).
4OLIVER T.W. YU. End - to - End Adaptive QoS Provisioning over GPRS Wireless Mobile Network. Mobile Networks &Applications 2003; (3).