共 7 条
[1]
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[2]
RUSSELL, 1939, MASSES STARS
[3]
STRUVE, 1950, POP ASTR, V58, P7
[4]
1935, PUB ASP, V47, P15
[5]
1938, MEM SOC ASTR ITALIAN, V11, P132
[6]
1938, AP J, V88, P472
[7]
1950, AP J, V111, P142