"Dedicated to Albrecht Unsغold on the occasion of his seventieth birthday."
Text of Note
Includes bibliographies and index
CONTENTS NOTE
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Labs, D. The energy flux of the sun.--Bغohm-Vitense, E. Model stellar atmospheres and heavy element abundances.--Hunger, K. Properties and problems of helium stars.--Baschek, B. Abundance anomalies in ear