id	domain	url
fuelectenerg-11938	doi.org	https://doi.org/10.2298/fuee2304589j
fuelectenerg-11938	www.fcc.gov	www.fcc.gov)
fuelectenerg-11938	www.fcc.gov	https://www.fcc.gov/document/revision-part-15-commissions-rules-regarding-ultra-wideband-7
fuelectenerg-11938	www.intechopen.com	https://www.intechopen.com/chapters/39710