Determination of Optimum Maturity for Several Apple Cultivars Grown in Minnesota. Journal of the American Pomological Society, [S. l.], v. 35, n. 3, p. 100–104, 1981. DOI: 10.71318/apom.1981.35.3.100. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1461. Acesso em: 10 feb. 2026.