共 109 条
[11]
CAHN JH, 1968, 34 IAU S, P44
[12]
CANNON AJ, 1926, 837 HARV B
[13]
CLARKE W, 1965, THESIS U CALIFORNIA
[15]
FLEMING M, 1911, 167 HARV CIRC
[16]
FLEMING M, 1910, 138 HARV CIRC
[17]
FRANCMAN L, 1962, ASTRON ZH, V39, P256
[19]
GURZADYAN GA, 1969, PLANETARY NEBULAE
[20]
HARO G, 1962, B OBS TONANTZINTAL T, V3, P37