The influence of trees on radio channels at frequencies of 3 and 5 GHz. - Anders Karlsson; Ralf E. Schuh; Christian Bergljung; Peter Karlsson; Niclas Lowendahl (VTC Fall, 2001)

Penalty free simultaneous 1 Gbit/s digital and GSM-1800 radio signal transmission over 600 m multimode fibre using 850 nm VCSEL sources. - Ralf E. Schuh; Erland Sundberg; Bertil Verri; Tommy Arkner (PIMRC, 2002)

W-CDMA coverage and capacity analysis for active and passive distributed antenna systems. - Ralf E. Schuh; Magnus Sommer (VTC Spring, 2002)