| Author | Titles | | 1.
| Robert, Serge | 1 | | 2.
| Robertet, François, 1---?-1524/30? | 1 | | 3.
| Robert-Gonçalves, Mickaël, 1986- | 1 | | 4.
| Robert-Houdin, Paul, 1907 - 1967 | 1 | | 5.
| Roberti, Mario Mirabella | 1 | | 6.
| Robertini, Marina Anzil | 3 | | 7.
| Robertis, Eduardo do D. Patrício de, 1913-1988 | 1 | | 8.
| Robertis, Edward Michael de, 1947- | 1 | | 9.
| Roberto, F. Xavier | 2 | | 10.
| Roberto, Fátima | 1 |
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