1. Federal Communication Commission : Spectrum Policy Task Force. Report of ET Docket November 2002., (02-135):
2. Mitola J III: Cognitive radio for flexible mobile multimedia communications. Proceedings of IEEE International Workshop on Mobile Multimedia Communications (MoMuC '99), November 1999, San Diego, Calif, USA 3-10.
3. Weiss TA, Jondral FK: Spectrum pooling: an innovative strategy for the enhancement of spectrum efficiency. IEEE Communications Magazine 2004, 42(3):S8-S14.
4. Haykin S: Cognitive radio: brain-empowered wireless communications. IEEE Journal on Selected Areas in Communications 2005, 23(2):201-220.
5. Weiss T, Hillenbrand J, Krohn A, Jondral FK: Mutual interference in OFDM-based spectrum pooling systems. Proceedings of the 59th IEEE Vehicular Technology Conference (VTC '04), May 2004, Milan, Italy 59: