You requested books by authors starting with "Gelfreykh, G. B.", and with titles starting with "Periodic fluctuations in fluxes of local radio-emission sources of the sun". (Exclude extended shelves)
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Gelfreykh, G. B.: Periodic fluctuations in fluxes of local radio-emission sources of the sun (L.G. Hanscom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, United States Air Force, 1970., 1970), also by Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)1 item was found.
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