| Author | Titles | 1.
| Röver, Anne | 2 | 2.
| Rovere, L. | 1 | 3.
| Roversi, Roberto | 1 | 4.
| Rovine, Victoria L. | 1 | 5.
| Rovira Armengol, José | 6 | 6.
| Rovira, Francesc | 2 | 7.
| Rovira, J. | 1 | 8.
| Rovira, Josep M. | 5 | 9.
| Rovira, Raimon | 4 | 10.
| Rovira y Armengol, José | 0 | 11.
| Author is: Rovira Armengol, José | 6 |
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