共 108 条
- [1] ABLES HD, 1971, PUBL US NAVAL OBS 4, V20, P60
- [2] EMISSION-LINE LUMINOSITIES OF SEYFERT-GALAXIES [J]. ASTROPHYSICAL JOURNAL, 1975, 199 (01) : 19 - 30
- [3] ALLEN RJ, 1971, ASTRON ASTROPHYS, V10, P198
- [6] BALDWIN IR, 1973, AP LETT, V14, P1
- [7] BALKOWSKI C, 1972, ASTRON ASTROPHYS, V21, P303
- [9] INFRARED AND RADIO OBSERVATIONS OF NUCLEUS OF NGC-253 [J]. ASTROPHYSICAL JOURNAL, 1973, 181 (01) : L27 - L31