1. R. Fontana h t t p : //w w w .j a c k s o n s . n e t / t a c / F i r s t % 2 0 Te r m / A _ B r i e f _ History_of_UWB_Communications.pdf
2. “Revision of part 15 of the commission's rules regarding ultra - wideband transmission systems,” 98 - 153 2002
3. “Ultra - wideband wireless systems,”;Aiello;IEEE Microw. Mag.,2003
4. “Ultra - wideband communications: An idea whose time has come,”;Yang;IEEE Signal Process. Mag.,2004