Extent: | 43 S. : graph. Darst. |
---|---|
Series: | Forschungsberichte des Landes Nordrhein-Westfalen. - Opladen : Westdt. Verl.. - Vol. 1007 |
Type of publication: | Book / Working Paper |
Language: | German |
Source: |
Persistent link: https://www.econbiz.de/10004617544