‘Bob Gordon’ Elderberry. Journal of the American Pomological Society, [S. l.], v. 65, n. 2, p. 52–55, 2011. DOI: 10.71318/apom.2011.65.2.52. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2765. Acesso em: 31 jan. 2026.