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Traditional environmental knowledge and consciousness and the problem of sustained agricultural development
Ehlers, Eckart - In: Applied geography and development : a biannual … 49 (1997), pp. 79-95
Persistent link: https://www.econbiz.de/10001218712
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The limits of agricultural settlements on the earth
Ehlers, Eckart - In: Applied geography and development : a biannual … 27 (1986), pp. 106-125
Persistent link: https://www.econbiz.de/10001012518