Haim, Patrick Gesualdi, Bárbara Cavalheiro Zoffoli, Everaldo Zonta, and Adelson Paulo Araújo. “Diagnosis of Nitrogen Nutrition in Common Bean Leaves by Digital Image Analysis”. Pesquisa Agropecuaria Brasileira 47, no. 10 (November 29, 2012): 1546–1549. Accessed August 30, 2026. https://apct.sede.embrapa.br/pab/article/view/12354.