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Yerkes Observatory, 1892-1950 : the birth, near death, and resurrection of a scientific research institution [E-Book] /
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New Problems in Astrometry [E-Book] /
Table of Contents: ... réduction des clichés astrographiques de champ quelconque (Résumé) -- The Yerkes Observatory Photoelectric Parallax Scanner -- On Inconsistencies Found in Long-Term Parallax Series (Abstract) -- Precise Reduction to the Apparent Places of Stars (Abstract...

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