Castellini, M., M. Pirastru, M. Niedda, and D. Ventrella. “Comparing Physical Quality of Tilled and No-Tilled Soils in an Almond Orchard in Southern Italy”. Italian Journal of Agronomy, vol. 8, no. 3, Sept. 2013, p. e20, doi:10.4081/ija.2013.e20.