共 30 条
[2]
[Anonymous], 1969, RIC ASTRON
[3]
BAUM WA, 1960, 1959 1960 MT WILS PA, P18
[6]
COHEN M, 1975, ASTROPHYS LETT COMM, V16, P165
[8]
CONDAL A, 1980, PREPRINT
[10]
SPECTROGRAPHIC SURVEY OF 21 PLANETARY-NEBULAE
[J].
ASTROPHYSICAL JOURNAL,
1976, 203 (03)
:636-646