Ruisi, P., D. Giambalvo, S. Saia, G. Di Miceli, A. S. Frenda, A. Plaia, and G. Amato. “Conservation Tillage in a Semiarid Mediterranean Environment: Results of 20 Years of Research”. Italian Journal of Agronomy, vol. 9, no. 1, Jan. 2014, pp. 1-7, doi:10.4081/ija.2014.560.