Baldini, Mario, Francesco Danuso, Alvaro Rocca, Elena Bulfoni, Maria Teresa Amaducci, Andrea Monti, and Giuseppe De Mastro. “Jerusalem Artichoke (Helianthus Tuberosus L.) Productivity in Different Italian Growing Areas: A Modelling Approach”. Italian Journal of Agronomy 6, no. 2 (June 1, 2011): e20. Accessed September 19, 2018. https://agronomy.it/index.php/agro/article/view/ija.2011.e20.