共 23 条
[2]
HAWKINS GS, 1962, NATURE, V195, P563
[3]
HETHERINGTON NS, 1971, 509 ASTR SOC PAC LEA
[4]
HOLMBERG E, 1969, ARK ASTRON, V5, P305
[8]
Humason M. L., 1936, AP J, V83, P10, DOI DOI 10.1086/143696
[10]
Lundmark K., 1925, MNRAS, V85, P865, DOI 10.1093/mnras/85.8.865