共 31 条
[21]
1949, OBSERVATORY, V69, P108
[22]
1949, MN, V109, P28
[23]
1939, AP J, V90, P368
[24]
1952, PUB R OBS EDINBURGH, V1, P75
[25]
1947, PUB ASP, V59, P266
[26]
1950, PUB ASP, V62, P18
[27]
1949, IAU Q B, P132
[28]
1950, CRPL NBS F72 REP, P44
[29]
1948, OBSERVATORY, V68, P191
[30]
1952, J METEOROL, V9, P126