Raven, a New Blackberry. Journal of the American Pomological Society, [S. l.], v. 16, n. 3, p. 51–51, 1962. DOI: 10.71318/apom.1962.16.3.51a. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/520. Acesso em: 4 feb. 2026.