Cooper, J., Baranski, M., Stewart, G., Lange, M., Barberi, P., Fliessbach, A., Peigne, J., Berner, A., Brock, C., Casagrande, M., Crowley, O., David, C., Vliegher, A., Döring, T., Dupont, A., Entz, M., Grosse, M., Haase, T., Halde, C., Hammerl, V., Huiting, H., Leithold, G., Messmer, M., Schloter, M., Sukkel, W., van der Heijden, M.G.A., Willekens, K., Wittwer, R., Mäder, P., 2016. Shallow non-inversion tillage in organic farming maintains crop yields and increases soil C stocks: A meta-analysis. Agronomy for Sustainable Development 36, 1–22. https://doi.org/10.1007/s13593-016-0354-1