| Verfasser | Häufigkeit |
| Raaflaub, Kurt A. 1941-2023 |
172 |
| Kares, Otto 1837- |
82 |
| Rudolphi, Karl Asmund 1771-1832 |
67 |
| Rickenbacher, Karl Anton 1940-2014 |
66 |
| Ploetz, Gustav 1851- |
65 |
| Rasmussen, Karl Aage 1947- |
63 |
| Reckling, Karl-August |
43 |
| Ross, Kenneth A. 1936- |
41 |
| Riedhofer, Korbinian Anton 1772-1839 |
37 |
| Ritzenhoff, Karen A. 1963- |
29 |
| Angelakē-Ruk, Katerina 1939-2020 |
28 |
| Rohan, Karl Anton 1898-1975 |
27 |
| Romstorfer, Karl A. 1854-1916 |
27 |
| Busch, D. W. H. |
25 |
| Graefe, Carl Ferdinand |
25 |
| Hufeland, Christoph Wilhelm |
25 |
| Link, Heinrich Friedrich |
25 |
| Müller, J. |
25 |
| Rudolphi, Karl Asmund |
25 |
| Rasmussen, Karl Aage |
23 |