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Rist, Stephan; Hoffmann, Volker; Koshelev, V. (2009). Alexander Tschajanow and Social Agronomy. In: Hoffmann, Volker; Christinck, Anja; Lemma, Manusha (eds.) Handbook: Rural Extension. Examples and Background Material, vol. 2 (pp. 528-534). Weikersheim: Margraf Publishers
