Extent: | 27 S. : Ill., graph. Darst. |
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Series: | Forschungsberichte des Landes Nordrhein-Westfalen. - Opladen : Westdt. Verl.. - Vol. 892 |
Type of publication: | Book / Working Paper |
Language: | German |
Source: |
Persistent link: https://www.econbiz.de/10004684805