| Verfasser | Häufigkeit |
|---|---|
| Luebbers, Heinrich | 2 |
| Luebbers, Leslie | 2 |
| Kunz, Karl S. | 1 |
| Luebbers, Heiko | 1 |
| Luebbers, Kimberly P. | 1 |
| Luebbers, Luebbert | 1 |
| Luebbers, Raymond J. | 1 |
| Luebbers, Ruth | 1 |
| Stein, Gary S. 1943- | 1 |
| Verfasser | Häufigkeit |
|---|---|
| Luebbers, Heinrich | 2 |
| Luebbers, Leslie | 2 |
| Kunz, Karl S. | 1 |
| Luebbers, Heiko | 1 |
| Luebbers, Kimberly P. | 1 |
| Luebbers, Luebbert | 1 |
| Luebbers, Raymond J. | 1 |
| Luebbers, Ruth | 1 |
| Stein, Gary S. 1943- | 1 |