RF power control in GSM systems for constant and non constant envelope modulation schemes. - Rolf Becker; Willem H. Groeneweg; Ralf Burdenski (ISCAS (3), 2003)

Baseband and audio mixed-signal front-end IC for GSM/EDGE applications. - Barbara Baggini; Philipp Basedau; Rolf Becker; Peter Bode; Ralf Burdenski; Farzad Esfahani; Willem H. Groeneweg; Markus Helfenstein; Alexander Lampe; Roland Ryter; Ralph Stephan (IEEE J. Solid State Circuits, 2006)