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2. Balsari, P., Airoldi, G., Casa, R.: Trattamenti fitosanitari in agricoltura di precisione. In: Casa, R. (ed.) Agricoltura di precisione, Edagricole, pp. 301–328 (2016)
3. Cavalli, R.: Analisi della distribuzione di una misce-la di fertilizzanti solidi mediante spandiconcime di ti-po centrifugo. Macchine e Motori Agricoli 10,13–20 (1984)
4. EN 13739-1, Agricultural machinery – Solid fertilizer broadcasters and full width distributors – Environmental protection – Part 1: Requirements, European Standard (2003)
5. EN 13739-2, Agricultural machinery – Solid fertilizer broadcasters and full width distributors – Environmental protection – Part 2: Test methods, European Standard (2003)