| Verfasser | Häufigkeit |
| Alldis, John 1929-2010 |
2 |
| Allister, Jean 1932- |
2 |
| Barry, Elaine |
2 |
| Bercu, Barry B. |
2 |
| Buchbinder, Mara |
2 |
| Capp, Eleanor |
2 |
| Churchill, Larry R. |
2 |
| Delius, Frederick 1862-1934 |
2 |
| Dudley, John |
2 |
| Erwen, Keith 1942-1984 |
2 |
| Estes, Simon 1938- |
2 |
| Estroff, Sue E. |
2 |
| Groves, Charles 1915-1992 |
2 |
| Herincx, Raimund 1927-2018 |
2 |
| Hill, Valery |
2 |
| Hogan, Patricia |
2 |
| Holmes, Eugene 1934- |
2 |
| Keary, Charles F. |
2 |
| King, Nancy M. P. |
2 |
| Lindsey, Claudia |
2 |