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1
Published 2001
Springer Netherlands
Table of Contents: “... to the Galactic tide -- Galactic triggering of periodic comet showers and mass extinctions on Earth -- The role...”
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2
by Huntress, JR., Wesley T., Marov, Mikhail Ya
Published 2011
Springer New York
Table of Contents: “... yet again -- Chapter 18: The International Comet Halley campaign -- Chapter 19: Another tryat Mars...”