1. “Radio regulations”, Published by the General Secretariat of the International Telecommunication Union Pub. No. ISBN 9261–00181–5, 1976 Edition revised (1979).
2. Environmental health criteria for radiofrequency and microwaves“, World Health Organization, Geneva (1980).
3. M.R. Kundu, “Solar Radio Astronomy”, Interscience Publishers, New York (1965).
4. J.M. Osepchuk, Review of environmental electromagnetic fields, Personal communication (1980).
5. W.M. Sinton, Detection of millimetre wave solar radiation, Phys. Rev. 86: 424 (1952).