Brenes, A., R. Marquardt, M. Muzquiz, W. Guenter, A. Viveros, and I. Arija. “Short Communication. Effect of Enzyme Addition on the Nutritive Value of Six Lupin Cultivars With Different Alkaloid Content”. Spanish Journal of Agricultural Research, Vol. 3, no. 2, June 2005, pp. 203-8, doi:10.5424/sjar/2005032-145.