共 5 条
[1]
Babcock H. W., 1958, ASTROPHYS J, V3, P141, DOI DOI 10.1086/190035
[3]
RAKOS KD, 1962, LOWELL OBS B, V5, P227
[4]
STEINITZ R, 1965, B ASTRON I NETH, V17, P504
[5]
VANGENDEREN AM, 1965, B ASTRON I NETH, V18, P67