共 50 条
- [1] THE SPLIT BETWEEN SEYFERT-1 AND SEYFERT-2 GALAXIES AS AN EDDINGTON-LUMINOSITY THRESHOLD SOVIET ASTRONOMY LETTERS, 1983, 9 (06): : 366 - 368
- [8] THE ULTRAVIOLET VARIABILITY OF SEYFERT-1 GALAXIES ASTROPHYSICAL JOURNAL, 1985, 297 (01): : 151 - 165
- [9] The difference between the narrow-line regions of Seyfert 1 and Seyfert 2 galaxies ASTROPHYSICAL JOURNAL, 1998, 506 (02): : 647 - 657