| Author | Titles | 1.
| Roedrich, Nicolas de | 1 | 2.
| Roegiers, Patrick | 9 | 3.
| Roehampton Institute (Londres, Grã-Bretanha) | 1 | 4.
| Roehrig, Catharine H. | 1 | 5.
| Roelandt, Els | 2 | 6.
| Roelandt, Louis | 1 | 7.
| Roelens, Nathalie | 1 | 8.
| Röell, D. C. | 7 | 9.
| Roelli, B. M. | 1 | 10.
| Roelofs, Pieter | 2 |
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