C.D.S. - SIMBAD4 rel 1.8 - 2024.05.19CEST09:09:12 Reference query: 1986ARA&A..24..171O (1 found) ---------------------------------------------- 1986ARA&A..24..171O Annual Rev. Astron. Astrophys., 24, 171-203 (1986) Emission-line regions of active galaxies and QSOs. OSTERBROCK D.E. and MATHEWS W.G. -Simbad objects: 9