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- [24] OBSERVATIONS OF QUASAR BROAD-LINE PROFILES IN THE OPTICAL AND INFRARED ACTIVE GALACTIC NUCLEI /, 1989, 134 : 133 - 134
- [27] RADIATION PRESSURE AND THE STABILITY OF BROAD-LINE REGION CLOUDS ASTROPHYSICAL JOURNAL, 1984, 285 (01): : L11 - L14
- [30] THE STRUCTURE OF THE BROAD-LINE REGION IN NGC-4151 SOVIET ASTRONOMY LETTERS, 1985, 11 (01): : 35 - 37