Gockowski, J.et al.The forest margins of Cameroon. inSlash-and-burn Agriculture: The Search for Alternatives(eds. Palm, C. A., Vosti, A. S., Sanchez, A. P. & Polly, J. E.) 305–331 (Columbia University Press, 2005). Nounamo, L. & Yemefack, M. Shifting cultivation practices ...