共 11 条
- [1] Hiltner W. A., 1956, ASTROPHYS J SUPPL S, V2, P389
- [6] Morgan W. W., 1954, PUBL ASTRON SOC PACI, V66, P85, DOI DOI 10.1086/126660
- [7] MORGAN WW, 1954, ASTRON J, V59, P188
- [8] A PROBABLE CLUSTERING OF BLUE GIANTS IN CYGNUS [J]. ASTROPHYSICAL JOURNAL, 1953, 118 (01) : 161 - 162
- [10] THE INFRARED SPECTRAL CLASSIFICATION OF M-TYPE STARS [J]. ASTROPHYSICAL JOURNAL, 1956, 124 (02) : 342 - &