Awareness networking in wireless environments. - Ari Ahtiainen; Kari Kalliojärvi; Mika Kasslin; Kari Leppänen; Andreas Richter; Päivi Ruuska; Carl Wijting (IEEE Veh. Technol. Mag., 2009)

ETSI Reconfigurable Radio System - System Aspects and Control Channels for Cognitive Radio. - Jens Gebert; Markus Mueck; Pierre-Jean Müller; Päivi Ruuska (WCNC Workshops, 2012)