| Author | Titles | | 1.
| Ruffoni, Cristina | 1 | | 2.
| Rufin, Jean-Christophe | 1 | | 3.
| Rufino, Jeannine | 0 | | 4.
| Rufino, Joana | 1 | | 5.
| Rufino, Maria de Lurdes | 2 | | 6.
| Rufino, Mercedes Gallis | 1 | | 7.
| Rufino, Pedro, 19--?- | 4 | | 8.
| Rufo, Marcel, 1945- | 1 | | 9.
| Rugarli, Giampaolo | 1 | | 10.
| Ruge, Ane Mette | 1 |
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