Importante! Sobre el catálogo
| 1. | Structure and kinematics of quasar broad line regions. | 1999 | Libro |
012.040
ASP |
| 2. | Active galactic nuclei : proceedings of the 134th Symposium of the International Astronomical Union, held in Santa Cruz, California, August 15-19, 1988 / edited by Donald E. Osterbrock and Joseph S. Miller. | 1989 | Libro |
006.121
|