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Sperling, L. ,  Nahimana, M ,  [Conference Sur le Lancement des Varietes, la Production, et la Distribution des Semences de Haricot dans la Region des Grands Lacs (1989, Goma, Zaire). Actes] ,  Conference Sur le Lancement des Varietes, la Production, et la Distribution des Semences de Haricot dans la Region des Grands Lacs (1989, Goma, Zaire). Actes

Sperling, L. ,  [Targeted seed aid and seed-systems interventions: Strengthening small-farmer seed systems in East and Central Africa : Proceedings of a workshop, held in Kampala, Uganda, 21-24 June 2000] ,  Targeted seed aid and seed-systems interventions: Strengthening small-farmer seed systems in East and Central Africa : Proceedings of a workshop, held in Kampala, Uganda, 21-24 June 2000

Sperling, L. ,  Osborn, Thomas C. ,  Cooper, D. ,  [Workshop on Effective and Sustainable Seed Relief Activities (2003, Rome). Towards effective and sustainable seed relief activities : Report] ,  Workshop on Effective and Sustainable Seed Relief Activities (2003, Rome). Towards effective and sustainable seed relief activities : Report