1950s
1955
-
Astrophys. J. 122, 95-102 (1955).
-
Astrophys. J. 122, 122-133 (1955).
-
Astrophys. J. 121, 326-336 (1955).
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Astrophys. J. 121, 51-55 (1955).
‡Undergraduate Student Author
†Graduate Student Author
‡Undergraduate Student Author
†Graduate Student Author