| Author | Titles | 1.
| Rüters, Nils | 1 | 2.
| Ruth, Uwe | 1 | 3.
| Ruthenbeck, Reiner, 1937-2016 | 1 | 4.
| Ruthenberg, Vera | 1 | 5.
| Rüther, Günther | 1 | 6.
| Ruther, Joseph W., 1934-1987 | 1 | 7.
| Ruther, Roseline | 2 | 8.
| Rutherford, Emma | 1 | 9.
| Rutherford, Susan | 1 | 10.
| Ruting, Peter, 1938- | 1 |
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