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3. Black, D. C. (ed.), (1980). Project Orion: A Design Study of a System for Detecting Extrasolar Planets. Special Pub. SP-436, NASA Ames Research Center, Moffett Field, Calif.
4. An infinitely expandable space telesscope;Buyakas;Acta Astron.,1979
5. Search for signals from extraterrestrial civilizations by the method of synchronous dispersion reception;Gindilis;Acta Astron.,1979