| Verfasser | Häufigkeit |
| Friedman, Howard S. |
10 |
| Friedman, David 1944- |
8 |
| Friedman, Herman |
8 |
| Friedman, Ignacy 1882-1948 |
8 |
| Bendinelli, Mauro |
7 |
| Friedman, Don 1935-2016 |
6 |
| Friedman, Lawrence M. 1930- |
5 |
| Schustack, Miriam W. |
5 |
| Adams, John 1947- |
4 |
| Edelstein, Lisa 1966- |
4 |
| Ehrlich, Jon |
4 |
| Epps, Omar |
4 |
| Friedman, Daniel P. |
4 |
| Friedman, Erick 1939-2004 |
4 |
| Friedman, Hal M. 1965- |
4 |
| Friedman, Liz |
4 |
| Friedman, Meyer 1910-2001 |
4 |
| Friedman, Peter |
4 |
| Friedman, Stephanie |
4 |
| Hammons, Thomas |
4 |