| Verfasser | Häufigkeit |
| Dyson, Omari L. |
7 |
| Dovgij, Olʹga Lʹvovna |
6 |
| Ormesson, Olivier Lefèvre d' 1616-1686 |
6 |
| Brooks, Kevin L. |
5 |
| Dick, Oliver Lawson 1920- |
5 |
| Jeffries, Judson L. 1964- |
5 |
| Davies, Owen L. |
4 |
| Davis, Ozro Luke 1928- |
4 |
| Dawson, Owen L. |
4 |
| Dimitriu, Oana-Lucia 1975- |
4 |
| Durán Ochoa, Luis |
4 |
| Drucker, Olga Levy |
3 |
| Dubovik, Olʹga L. |
3 |
| Krkosek, Martin |
3 |
| Lappo-Danilewski, Olga |
3 |
| Olden, Julian D. |
3 |
| Arminan Odriozola, Luis de |
2 |
| Aubrey, John 1626-1697 |
2 |
| Cetron, Marvin |
2 |
| Closs, Gerry |
2 |