| Verfasser | Häufigkeit |
|---|---|
| Able, Grant Ward | 2 |
| Chieregatti, Paolo | 2 |
| Coop, Robert L. | 2 |
| Ebbers, Mike | 2 |
| Herman, Robert | 2 |
| Joergensen, Tommy | 2 |
| Lopez, Luis Aused | 2 |
| Taylor, Michael A. | 2 |
| Wall, Richard L. | 2 |
| Wall, Steve | 2 |
| Williams, Nigel | 2 |
| Adams, Susie | 1 |
| Cannon, Clifford | 1 |
| Hardas, Dilip | 1 |
| Havlioglu, Cuneyt | 1 |
| Hossein, Akhtar | 1 |
| Kaiman, Charles | 1 |
| Lake, Tom | 1 |
| Lane, William L. 1931-1999 | 1 |
| Lemcio, Eugene E. | 1 |