H. Jahnke

发表

Jahnke, Hans E. Livestock Production Systems and Livestock Development in Tropical Africa. Kiel Germany: Keiler Wissenschaftsverlag Vauk, 1982, xx + 253 pp.; $27.00 paper

H. Jahnke, Kieler, Vauk, 1983 .

Innovation Policy for Small Farmers in the Tropics: The Economics of Technical Innovations for Agricultural Development

H. Jahnke, H. Ruthenberg, 1985 .

The economics of controlling tsetse flies and cattle trypanosomiasis in Africa : examined for the case of Uganda

H. Jahnke, 1974 .

Tsetse flies and livestock development in East Africa: A study in environmental economics

H. Jahnke, 1976 .

New data about the Lower-/Middle Devonian boundary

H. Jahnke, P. Carls, O. H. Walliser, 1972 .

The impact of agricultural research in tropical Africa : a study of the collaboration between the international and national research systems

D. Kirschke, H. Jahnke, J. Lagemann, 1987 .

Impact assessment of international agricultural research centres

D. Kirschke, H. Jahnke, J. Lagemann, 1986 .

Some aspects of pastoral supply behaviour and rural livestock marketing in Africa: the case of central Somalia.

H. Jahnke, A. M. Abdullahi, 1990 .

Silurian and Devonian of the Pisuerga-Carrión-Unit of the Cantabrian Mountains N-Spain

H. Jahnke, H. Mader, A. Henn, 1983 .