
1.		RPI series : propagation ionized media: CCIR recommendations (new and revised as of 12 october 1992) / International Telecommunication Union Data Publicação: 1992 Tema: Radiocomunicações
2.		RPN series : propagation in non-ionized media: CCIR recommendations (new and revised as of 8 October 1992) / International Telecommunication Union Data Publicação: 1992 Tema: Radiocomunicações

RPI series : propagation ionized media: CCIR recommendations (new and revised as of 12 october 1992) / International Telecommunication Union

Data Publicação: 1992 Tema: Radiocomunicações

RPN series : propagation in non-ionized media: CCIR recommendations (new and revised as of 8 October 1992) / International Telecommunication Union

Data Publicação: 1992 Tema: Radiocomunicações