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Comets in the Post-Halley Era [E-Book] : In Part Based on Reviews Presented at the 121st Colloquium of the International Astronomical Union, Held in Bamberg, Germany, April 24–28, 1989 /
Other Personal Name(s): “...Neugebauer, M....”

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Astronomy and History Selected Essays [E-Book] /
Other Personal Name(s): “...Neugebauer, O....”

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