Ramos, M. C., Oliva, E., & Nacci, S. (2010). Phosphorous and nitrogen changes in compost-amended schist soils in vineyards in the D.O. Priorat wine-producing area (NE Spain). Spanish Journal of Agricultural Research, 8(4), 1242-1252. https://doi.org/10.5424/sjar/2010084-1410