| Author | Titles | | 1.
| Ruy, José, 1930-2022 | 3 | | 2.
| Ruy Leitão, 1949-1976 | 0 | | 3.
| Author is: Leitão, Ruy, 1949-1976 | 9 | | 4.
| Ruyen, Jean-Sébastien | 1 | | 5.
| Ruyffelaere, Peter | 1 | | 6.
| Ruyffelaere, Ruth | 1 | | 7.
| Ruygt, Anne | 2 | | 8.
| Ruysdael | 1 | | 9.
| Ruyssen, Théodore | 2 | | 10.
| Ruyter, Thibaut de | 1 | | 11.
| Ruyters, Domeniek | 1 |
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