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Earth Rotation: Solved and Unsolved Problems [E-Book] /

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The Search for Extraterrestrial Life: Recent Developments [E-Book] : Proceedings of the 112th Symposium of the International Astronomical Union Held at Boston University, Boston, Mass., U.S.A., June 18–21, 1984 /
Table of Contents: “... -- Section V. Radio Searches — Recent Observations -- SETI Observations Worldwide -- Project Sentinel: Ultra-Narrowband SETI at Harvard/Smithsonian -- The Ohio SETI Program — The First Decade -- A Search in the Infrared to Microwave for Astroengineering Activity...”

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Stellar Rotation [E-Book] : Proceedings of the IAU Colloquium held at the Ohio State University, Columbus, O., U.S.A., September 8–11, 1969 /

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