Hampson, K.

Chavez-Tafur, J. et al., 2007. Learning from experience : a manual organising, analysing and documenting field based information, Amersfoort, The Netherlands: Centre for Information on Low External Input and Sustainable Agriculture, ILEIA. Available at: https://fr.ircwash.org/sites/default/files/Chavez-2007-Learning.pdf.