Multi-slot packet radio air interface to TDMA systems-variable rate reservation access (VRRA). - Jari Hämäläinen; Harri Jokinen; Zhi-Chun Honkasalo; Richard Fehlmann (PIMRC, 1995)

Correlation-Based Cell Degradation Detection for Operational Fault Detection in Cellular Wireless Base-Stations. - Muhammad Zeeshan Asghar; Richard Fehlmann; Tapani Ristaniemi (MONAMI, 2013)