共 31 条
[1]
Abell G. O., 1958, ASTROPHYS J SUPPL S, V3, P211
[2]
[Anonymous], 1961, HUBBLE ATLAS GALAXIE
[7]
FREUDLING W, 1990, THESIS CORNELL U
[9]
GIOVANELLI R, 1991, ANNU REV ASTRON ASTR, V29, P499