| 2006 | ||
|---|---|---|
| 1 | Nguyen Thinh, Martin Behnisch, Alfred Ultsch: Examination of Several Results of Different Cluster Analyses with a Separate View to Balancing the Economic and Ecological Performance Potential of Towns and Cities. GfKl 2006: 289-296 | |
| 1 | Martin Behnisch | [1] |
| 2 | Alfred Ultsch | [1] |