FELKER, P. .; KUTI, J. .; GREGORY, R. Relative cold hardiness of fruit and vegetable Opuntia clones in the Texas A&I University Collection . Journal of the Professional Association for Cactus Development, [S. l.], p. 67–74, 2021. DOI: 10.56890/jpacd.vi.421. Disponível em: https://jpacd.org/jpacd/article/view/421. Acesso em: 14 jan. 2026.