# Références

* Brauman A., Thoumazeau A., Félix-Faure J., Rakotondrazafy N., Protocoles Biofunctool® Un set d'indicateurs pour évaluer la santé des sols - CIRAD, IRD 2019-2024
* Weil RR, Islam KR, Stine MA, Gruver JB, Samson-Liebig SE. 2003. Estimating active carbon for soil quality assessment: A simplified method for laboratory and field use. American Journal of Alternative Agriculture 18:3–17.
* Culman S., Freeman M., Snapp S., 2012. Procedure for the Determination of Permanganate Oxidizable Carbon. Available at : <https://lter.kbs.msu.edu/protocols/133>.

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