| Verfasser | Häufigkeit |
| Bower, James B. |
4 |
| Schlosser, Robert E. |
4 |
| Atkinson, Rowan 1955- |
3 |
| Behrens, Hildegard 1937-2009 |
3 |
| Bennett, Richard Rodney 1936-2012 |
3 |
| Bower, David 1969- |
3 |
| Bower, Jacalyn |
3 |
| Callow, Simon 1949- |
3 |
| Castle, Joyce 1944- |
3 |
| Coleman, Charlotte 1968-2001 |
3 |
| Coulter, Michael 1952- |
3 |
| Fleet, James 1954- |
3 |
| Grant, Hugh 1960- |
3 |
| Hannah, John 1962- |
3 |
| Hemming, Lindy 1948- |
3 |
| Hillhouse, Wendy |
3 |
| Ikonomu, Katarina |
3 |
| Kaiser, Franz-Josef 1935- |
3 |
| Kesling, Diane 19XX- |
3 |
| Lakes, Gary 1950- |
3 |