Paterniani, M. L. S., A. Pardini, and V. Pratesi. “Variability of Agro-Silvo-Pastoral Systems in Tuscany, Central Italy”. Journal of Agriculture and Environment for International Development (JAEID), vol. 103, no. 4, Nov. 2011, pp. 295-07, doi:10.12895/jaeid.20094.37.