1. Federal Communications Commission: ‘Spectrum policy task force report’. 2002, November, (ET docket no. 02-135), http://hraunfoss.fcc.gov/edocsnpublic/attachmatch/DOC-228542A1.pdf
2. Spectrum pooling: an innovative strategy for the enhancement of spectrum efficiency
3. Federal Communications Commission: ‘Notice of proposed rule making and order’. (ET docket no. 03-108), http://hraunfoss.fcc.gov/edocsnpublic/attachmatch/FCC-03-322A1.pdf