共 18 条
- [4] BAADE W, 1944, AP J, V100, P134
- [7] CUFFEY JC, 1943, ASTROPHYS J, V98, P49
- [8] FRICKE W, 1949, A N, V278, P51
- [9] Magnitudes and colours in the globular cluster Messier A [J]. ASTROPHYSICAL JOURNAL, 1939, 90 (03) : 387 - 413
- [10] HACHENBERG O, 1939, Z ASTROPHYS, V18, P49