共 9 条
- [2] BLANCO V, 1959, IN PRESS
- [3] BURBIDGE M, 1958, ASTROPHYS J, V128, P174
- [4] KEENAN PC, 1951, ASTROPHYSICS, P23
- [5] KUSTNER F, 1923, BONNER VEROFF, V18
- [6] MEURERS J, 1956, BONNER VEROFF, V43
- [8] SANDAGE AR, 1958, PONTIF ACAD SCI SCRI, V16, P191
- [9] STEPHENSON CB, 1958, THESIS U CALIFORNIA