共 28 条
[1]
CANNON AJ, 1923, HARVARD B, V781
[2]
GUM CS, 1955, MEM RAS 4, V67
[6]
HUBBLE E, 1921, PUB ASP, V33, P176
[7]
IRIARTE B, 1956, B OBS TONANTZINTAL T, V14, P31
[8]
IRIARTE B, 1955, B OBS TONANTZINTLA, V13, P12
[10]
LINDBLAD B, 1927, UPPSALA MED, V17