’Chester Thornless’ Blackberry. Journal of the American Pomological Society, [S. l.], v. 52, n. 3, p. 118–123, 1998. DOI: 10.71318/apom.1998.52.3.118. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2319. Acesso em: 13 dec. 2025.