‘Spartan’ Apple. Journal of the American Pomological Society, [S. l.], v. 53, n. 4, p. 190–192, 1999. DOI: 10.71318/apom.1999.53.4.190. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2366. Acesso em: 30 jan. 2026.