Reina, R., R. Ullrich, I. García-Romera, C. Liers, and E. Aranda. “Integrated Biovalorization of Wine and Olive Mill by-Products to Produce Enzymes of Industrial Interest and Soil Amendments”. Spanish Journal of Agricultural Research, Vol. 14, no. 3, Aug. 2016, p. e0205, doi:10.5424/sjar/2016143-8961.