共 24 条
[1]
*ALL OBS, 1908, PUBL ALL OBS, V1, P33
[2]
*DOM AP OBS, 1930, PUB DOM AP OBS, V4, P271
[3]
*DOM AP OBS, 1930, PUB DOM AP OBS, V2, P16
[4]
*DOM OBS, 1917, PUB DOM OBS, V4, P115
[5]
KUIPER, 1938, AP J, V88, P503
[6]
RUSSELL HW, COMMUNICATION
[7]
SWINGS, 1940, AP J, V91, P546
[8]
*U TEX, CONTR MCDON OBS U TE, V27
[9]
*YERK OBS, 1939, PUB YERK OBS, V7, P297
[10]
*YERK OBS, 1939, PUB YERK OBS, V7, P293