共 11 条
- [1] ALLER LH, 1968, STARS STELLAR SYSTEM, V7
- [2] Andrillat Y., 1968, ASTROPHYS LETT, V1, P111
- [3] HYDROGEN RADIATION SPECTRUM IN GASEOUS NEBULAE [J]. ASTROPHYSICAL JOURNAL, 1964, 139 (01) : 225 - &
- [4] FREEMAN K, 1972, PRIVATE COMMUNICATIO
- [7] OSTERBROCK DE, 1971, P VATICAN C NUCLEI G
- [8] PASTORIZA, 1972, 44 IAU S EXT GAL QSO