| Verfasser | Häufigkeit |
| Keyser, Paul T. 1957- |
50 |
| Keyser, Paul de 1891-1966 |
21 |
| Keyser, Jeroen de |
13 |
| Philelphus, Franciscus 1398-1481 |
12 |
| Keyser, J. P. de |
6 |
| Scarborough, John 1940- |
3 |
| Botana, Goretti Prieto |
2 |
| De Keyser, Paul |
2 |
| De Keyser, Pierre |
2 |
| DeKeyser, Paul |
2 |
| DeKeyser, Robert |
2 |
| Irby, Georgia L. 1965- |
2 |
| Keyser, Friedrich Pancratius |
2 |
| Keyser, Peter |
2 |
| Keyser, Peter 1932- |
2 |
| Keyser, Pierre de |
2 |
| Piske-Keyser, Karl Oswald |
2 |
| Aichinger, Car. Frid |
1 |
| Alkofer, C. F. |
1 |
| Anaximenes Lampsacenus v380-v320 |
1 |