Steiner, F., Pivetta, L. A., Zoz, T., & Pinto Junior, A. S. (2012). Organic carbon stock in soil affected by organic fertilization and cropping systems in southern Brazil. Semina: Ciências Agrárias, 33(6Supl1), 2775–2788. https://doi.org/10.5433/1679-0359.2012v33n6Supl1p2775