共 47 条
[13]
FITCH WS, 1966, COMM LUNAR PLANET OB, V5
[15]
GREENSTEIN JL, 1954, PUB ASP, V66, P79
[16]
GREENSTEIN JL, 1971, IAU42 S, P46
[17]
HARDIE RH, 1966, IAU24 S, P243
[18]
HARDING GA, 1966, 115 R OBS B
[19]
HARDING GA, 1971, 165 R OBS B