共 10 条
[1]
Blackwell D. E., 1966, MON NOT R ASTRON SOC, V131, P383
[2]
BLACKWELL DE, 1967, ADV ASTR ASTROPHYS, V5, P25
[5]
Mikhailov A. A., 1956, ASTRON ZH, V33, P912
[9]
TRUMPLER RJ, 1956, HELV PHYS ACTA S4, P106
[10]
van de Hulst H. C., 1950, B ASTRON I NETHERLAN, V11, P135