共 45 条
[11]
HENIZE KG, 1959, SKY TELESCOPE, V18, P315
[12]
HOFFLEIT D, 1953, HARVARD ANN, V119, P37
[13]
KOHOUTEK L, 1962, B ASTRON I CZECH, V13, P120
[14]
KOHOUTEK L, 1964, B ASTR I CZECH, V15, P164
[15]
MAYALL MW, 1951, HARVARD B, V920, P322