Pampana, S., M. Mariotti, L. Ercoli, and A. Masoni. “Remobilization of Dry Matter, Nitrogen and Phosphorus in Durum Wheat As Affected by Genotype and Environment”. Italian Journal of Agronomy, vol. 2, no. 3, Sept. 2007, pp. 303-14, doi:10.4081/ija.2007.303.