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1
by Kopal, Zdenek, Carder, R.W.
Published 1974
Springer Netherlands
“... of the human efforts to map the topography of the surface of our satellite, from the days of pre-telescopic...”
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2
by Kopal, Zdenek
Published 1969
Springer Netherlands
“... to reconnoiter our satellite at a close range. The hard-landers among them just about delivered their message...”