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Par Collection Par Auteur- CHRISTIANSEN, T. (1)
- DICKHOF, A. (1)
- HAHN, A. (1)
- LOOSER, U. (1)
- SCHORLEMER, D. (1)
- WEISE, O. (1)
- 1984 (1)
- The increasing destruction of forests and soil erosion are the limiting factors for the land use in the project area. The necessary preliminary work for suitable steps against this danger is the task of this publication. It deals with: the local