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    Diagnostique spécifique - haricot commun - à Walungu by Musungayi, T, Sperling, L., Graf, W, Lunze, Lubanga

    Published 1992
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    Conference Paper
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    Agroforestry research in bean-based cropping systems of subsahalien Africa: A review of research methodologies and results by Graf, W, Ndorehayo, V

    Published 1988
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    Conference Paper
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    Seminaire Regional sur l`Amelioration du Haricot dans la Region des Grands Lacs (5, 1989, Bujumbura, Burundi). Actes by Nzimenya, I, Graf, W, Scheidegger, Urs C.

    Published 1992
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    Conference Proceedings
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    Atelier sur la Fixation Biologique d`Azote du Haricot en Afrique = Workshop on Biological Nitrogen Fixation of Beans in Africa (1988, Rubona, Rwanda). Actes = Proceedings by Nyabyenda, P, Hakizimana, A, Kipe-Nolt, Judith A., Davis, J., Graf, W

    Published 1988
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    Conference Proceedings
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    Atelier sur la Fixation Biologique d`Azote du Haricot en Afrique = Workshop on Biological Nitrogen Fixation of Beans in Africa (1988, Rubona, Rwanda). Actes = Proceedings by Nyabyenda, P, Hakizimana, A, Kipe-Nolt, Judith A., Davis, J.H.C., Graf, W

    Published 1988
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    Conference Proceedings
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    Methodologie et resultats des essais d`adaptabilite du haricot en milieu rural, 1986 by Graf, W, Dessert, K, Nyabyenda, P

    Published 1986
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    Informe técnico
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    Results and methodology of diagnostic trials on common beans (Phaseolus vulgaris) in Rwanda: a critical appraisal by Graf, W, Trutmann, P.

    Published 1987
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    Informe técnico

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