| Author | Titles | 1.
| Romu, Jukka | 1 | 2.
| Romualdi, Lucia | 1 | 3.
| Romualdo | 1 | 4.
| Romualdo, 1948-2024 | 6 | 5.
| Romualdo, josé, 1948-2024 | 0 | 6.
| Author is: Romualdo, 1948-2024 | 6 | 7.
| Romualdo, José Manuel, 1948-2024 | 0 | 8.
| Author is: Romualdo, 1948-2024 | 6 | 9.
| Ron, Xesús | 1 | 10.
| Rona, Stéphane | 1 | 11.
| Ronai, Cora | 1 | 12.
| Rónai, Paulo | 2 |
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