Extent: | 27 S. : graph. Darst. |
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Series: | Working paper / University of Cologne, Department of Economic and Social Geography. - Köln, ISSN 1434-3746. - Vol. 98,01 |
Type of publication: | Book / Working Paper |
Notes: | Literaturverz. S. 25 - 27 |
Classification: | Forschung und Entwicklung |
Source: |
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