共 11 条
[1]
CEDERBLAD S, 1946, MEDD LUNDS ASTR OB 2, V119
[2]
HASE WF, 1952, IZV CRIM AP OBS, V9, P52
[3]
HASE WF, 1951, IZV CRIM AP OBS, V7, P93
[4]
Hiltner W. A., 1956, ASTROPHYS J SUPPL S, V2, P389
[5]
HILTNER WA, 1956, AP J, V124, P377
[6]
HOFFLEIT D, 1956, AP J, V124, P72
[9]
SCHALEN C, 1948, MEDD ASTR OBS UPPSAL, V90