| Verfasser | Häufigkeit |
|---|---|
| Heck, Klaus Dieter | 4 |
| Driscoll, Kathy | 1 |
| Harvie, John | 1 |
| Heck, Angela | 1 |
| MacLeod, Margaret Anne | 1 |
| Russick, Bob | 1 |
| Snidal, Dr. D. P. | 1 |
| Snyder, Stephen | 1 |
| Verfasser | Häufigkeit |
|---|---|
| Heck, Klaus Dieter | 4 |
| Driscoll, Kathy | 1 |
| Harvie, John | 1 |
| Heck, Angela | 1 |
| MacLeod, Margaret Anne | 1 |
| Russick, Bob | 1 |
| Snidal, Dr. D. P. | 1 |
| Snyder, Stephen | 1 |