Silveira, Ricardo Faria, and Eliane Augustin. “Relation Between Stem Number and Diameter, Plant Height and Vigor and Yield of Asparagus”. Pesquisa Agropecuaria Brasileira 28, no. 1 (January 1, 1993): 129–133. Accessed November 11, 2025. https://apct.sede.embrapa.br/pab/article/view/3852.