A Search for Natural or Artificial Objects Located at the Earth-Moon Libration Pointshttp://www.rfreitas.com/Astro/SearchIcarus1980.htm
Valdes Department of Astronomy University of California, Berkeley, California 94720 Icarus 42 , 442-447 (1980) Received October 29, 1979; revised April 4, 1980 Copyright © 1980 by
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