共 12 条
[2]
KUIPER, 1938, AP J, V87, P592
[3]
KUIPER, 1942, AP J, V95, P201
[4]
MORGAN, 1938, AP J, V87, P589
[5]
REUYL, 1941, PUB ASP, V53, P336
[6]
REUYL, 1936, AJ, V45, P133
[7]
REUYL, 1941, PUB AAS, V10, P143
[8]
REUYL, 1942, PUB ASP, V54, P52
[9]
1940, HARVARD ANNOUNCEMENT, V550
[10]
1941, PUB ASP, V53, P244