W. Lee Allen. Journal of the American Pomological Society, [S. l.], v. 16, n. 4, p. 76–76, 1962. DOI: 10.71318/apom.1962.16.4.76. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/530. Acesso em: 28 sep. 2026.