| Author | Titles | 1.
| Olivares, Rosa, 1955- | 155 | 2.
| Olivares, Sergi | 1 | 3.
| Olivares Zurilla, Rosa, 1955- | 0 | 4.
| Author is: Olivares, Rosa, 1955- | 155 | 5.
| Olivari, Alessandra | 1 | 6.
| Olivari, Maria Teresa Binaghi | 1 | 7.
| Olivas Martínez, José Luis | 1 | 8.
| Olive, Frank | 1 | 9.
| Oliveira, A. Augusto de | 1 | 10.
| Oliveira, A. Correia de | 1 | 11.
| Oliveira, A. E. de | 1 |
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