共 17 条
[2]
GIACCONI R, 1967, ASTROPHYS J, V148, pL129
[4]
GREENSTEIN JL, 1960, STARS STELLAR SYSTEM, V6, P676
[5]
HERBIG GH, 1957, NONSTABLE STARS ED, P46
[6]
HUMASON ML, 1938, ASTROPHYS J, V88, P237
[9]
KRAFT RP, 1961, SCIENCE, V134, P1433