Szál | Szerző | Dátum () |
---|
| Arne Georg Gleditsch | |
| Philip Hazel | |
| Arne Georg Gleditsch | |
| Philip Hazel | |
| Sheldon Hearn | |
| Philip Hazel | |
| Sheldon Hearn | |
| Tom Kistner | |
| Sheldon Hearn | |
| Arne Georg Gleditsch | |
| Philip Hazel | |
| Arne Georg Gleditsch | |
| Philip Hazel | |
| Arne Georg Gleditsch | |
| Philip Hazel | |