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~person:"Ruthenberg, Hans"
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Agrarbodennutzung
3
Agrarbetrieb
1
Agrarproduktivität
1
Nigeria
1
Ostnigeria
1
Tropenländer
1
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Ruthenberg, Hans
Clawson, Marion
10
Lesher, William G.
10
Andreae, Bernd
9
Grenzebach, Klaus
4
Spitzer, Hartwig
4
Alkämper, Jochen
3
Barlowe, Raleigh
3
Boesch, Hans
3
Burley, T. M.
3
Giri, R.
3
Grunwaldt, Hans-Siegfried
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Guttenberg, Albert Z.
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Heady, Earl O.
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Ho, Robert
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Kostrowicki, Jerzy
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Langlands, B. W.
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Schinke, Eberhard
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Sharma, S. C.
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Timmons, John F.
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Zabrowarny, Stefan
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Aanesland, Normann
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Aksenenok, G. A.
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Allan, William
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Andreae, B.
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Andreev, Nikola
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Arntzen, Jaap W.
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Berger, Curtis J.
2
Best, Robin H.
2
Bills, Nelson L.
2
Blohm, Georg
2
Blum, Winfried E. H.
2
Bulyčev, M. I.
2
Campbell, David J.
2
Cerrone, Piero
2
Chadha, G. K.
2
Chen, Cheng-siang
2
Chusainov, B. V.
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Conklin, Howard E.
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Crusol, Jean
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Zeitschrift für ausländische Landwirtschaft : Sozialökonomik, Betriebswirtschaft, Landbautechnik
2
Economics : a biannual coll. of recent German contributions to the field of economic science ; a series iss. in the service of scientific cooperation
1
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ECONIS (ZBW)
3
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1
Land use, soil fertility and agricultural productivity as influenced by population density in Eastern Nigeria
Lagemann, Johannes
;
Flinn, John C.
;
Ruthenberg, Hans
- In:
Zeitschrift für ausländische Landwirtschaft : …
15
(
1976
)
2
,
pp. 206-219
Persistent link: https://www.econbiz.de/10002451523
Saved in:
2
Definition of types of farming in the tropics
Ruthenberg, Hans
- In:
Economics : a biannual coll. of recent German …
1
(
1970
),
pp. 136-141
Persistent link: https://www.econbiz.de/10002720371
Saved in:
3
Farm systems and farming systems
Ruthenberg, Hans
- In:
Zeitschrift für ausländische Landwirtschaft : …
15
(
1976
)
1
,
pp. 42-55
Persistent link: https://www.econbiz.de/10002720514
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