共 13 条
[1]
BAUM WA, 1961, OBSERVATORY, V81, P114
[2]
BONDI H, 1960, COSMOLOGY, P46
[4]
DAVIDSON W, 1962, MON NOT R ASTRON SOC, V123, P425
[5]
DAVIDSON W, UNPUB
[7]
HANBURY R, 1961, MN, V123, P479