共 63 条
[1]
AARONSON M, 1978, AP J, V220
[2]
BALDWIN IR, 1973, AP LETT, V14, P1
[5]
COHEN J, UNPUBLISHED
[6]
FABER SM, 1972, ASTRON ASTROPHYS, V20, P361
[9]
FROGEL JA, 1975, ASTROPHYS J, V200, pL123, DOI 10.1086/181912