共 19 条
- [4] CRAMPTON D, 1973, IAU54 S
- [5] CRAMPTON D, TO BE PUBLSHED
- [7] DAVIDSEN A, 1972, ASTROPHYS J, V177, P97
- [8] Hiltner W. A., 1956, ASTROPHYS J SUPPL S, V2, P389
- [10] OPTICAL OBSERVATIONS AND MODEL FOR CYGNUS-X-1 [J]. ASTROPHYSICAL JOURNAL, 1973, 182 (02) : 549 - 557