The Blackberries of South America — An Unexplored Reservoir of Germplasm. Journal of the American Pomological Society, [S. l.], v. 32, n. 3, p. 61–63, 1978. DOI: 10.71318/apom.1978.32.3.61. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1364. Acesso em: 10 dec. 2025.