GPRS and IS-136 integration for flexible network and services evolution. - Stefano M. Faccin; Liangchi Hsu; Rajeev Koodli; Khiem Le; René Purnadi (IEEE Wirel. Commun., 1999)

Enhancements to QoS management for real time radio bearers in 3G cellular systems. - Ghassam Naim; René Purnadi; Yousuf Saifullah; Srinivas Sreemanthula; Haihong Zheng (WCNC, 2000)

DS-41 and UMTS intersystem roaming. - René Purnadi; Giridhar D. Mandyam (WCNC, 2000)