Marchetti, R., Castelli, F., Orsi, A., Sghedoni, L. and Bochicchio, D. (2012) “Biochar from swine manure solids: influence on carbon sequestration and Olsen phosphorus and mineral nitrogen dynamics in soil with and without digestate incorporation”, Italian Journal of Agronomy, 7(2), p. e26. doi: 10.4081/ija.2012.e26.