Vollaro, Michele, Meri Raggi, and Davide Viaggi. “Public R&D and European Agriculture: Impact on Productivity and Return on R&D Expenditure”. Bio-based and Applied Economics 10, no. 1 (July 24, 2021): 73–86. Accessed April 25, 2024. https://oaj.fupress.net/index.php/bae/article/view/9928.