1. J. Mitola III., Cognitive radio: an integrated agent architecture for software radio, Ph.D. Thesis, Royal Institute of Technology (KTH), Sweden, May 2000
2. Cognitive radio: Making pcs personal;Maguire;IEEE PCS Magazine,1999
3. FCC Notice of Inquiry, In the matter of additional spectrum for unlicensed below 900 MHz and in the 3 GHz band, ET Docket No. 02-380, 17 FCC Rcd 25632, 2002
4. FCC 03-322 NPRM on Cognitive Radio. http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-322A1.pdf
5. D. Raychaudhuri, Adaptive wireless networks using cognitive radios as a building block, MobiCom 2004 Keynote Speech, Philadelphia, PA, September, 2004