| Verfasser | Häufigkeit |
|---|---|
| Daniels, Callie | 2 |
| Hornsby, E. John 1949- | 2 |
| Lial, Margaret L. 1927- | 2 |
| Schneider, David I. | 2 |
| Akkouch, Hassan 1988- | 1 |
| Akkouch, Lial | 1 |
| Akkouch, Maradona | 1 |
| Denis, Moritz 1977- | 1 |
| Hornsby, E. John | 1 |
| Imondi, Agostino | 1 |
| Lial, Margaret L. | 1 |
| McGinnis, Terry | 1 |
| Ratsch, Dietmar | 1 |