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1by Van Asten, Piet J.A., Jassogne, Laurence, Vaast, Philippe, Läderach, Peter, Schroth, Götz, Lundy, Mark, Asare, Richard, Muilerman, Sander, Ruf, François, Snoeck, Didier, Koko, L.K., Anim-Kwapong, Gilbert, Rossing, Walter A.H., Gockwoski, James, Giller, Ken E., Six, Johan, Vanlauwe, Bernardconference_item bibliotecaCIRAD FR