‘Sampo’ and ‘Samdal’, Elderberry Cultivars for Juice Concentrates. Journal of the American Pomological Society, [S. l.], v. 51, n. 1, p. 28–31, 1997. DOI: 10.71318/apom.1997.51.1.28. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2243. Acesso em: 1 feb. 2026.