Enlace original:
https://cgspace.cgiar.org/handle/10568/76062
Vanlauwe, Bernard
,
Wendt, J.
,
Giller, Ken E.
,
Corbeels, Marc
,
Gerard, Bruno G.
,
[Response to Sommer et al. (2014) Fertiliser use is not required as a fourth principle to define conservation agriculture]
,
Response to Sommer et al. (2014) Fertiliser use is not required as a fourth principle to define conservation agriculture