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4by Pham Doan Lan, Nguyen Trong Binh, Nguyen Van Ba, Do Ngoc Duy, Le Quang Nam, Nhu Van Thu, Le Thi Thuy, Vu Chi Cuong, Nguyen Dang Vang, Varrier, Etienne, Maillard, Jean-Charlesarticle bibliotecaCIRAD FR