共 6 条
[1]
BROWN RH, 1960, OBSERVATORY, V80, P191
[3]
HASLAM CGT, 1962, MON NOT ROY ASTRO SO, V124, P273
[4]
HULSBOSCH ANM, 1964, INTERN ASTRO UNION, pR12
[5]
MEABURN J, SUBMITTED
[6]
QUIGLEY MJS, 1965, THESIS