PARISH , J. .; FELKER , P. Evaluation of Fruit Quality and Production of Cold-Hardy Opuntia Fruit Clones . Journal of the Professional Association for Cactus Development, [S. l.], p. 12a–12e, 1995. DOI: 10.56890/jpacd.vi.218. Disponível em: https://www.jpacd.org/jpacd/article/view/218. Acesso em: 16 oct. 2025.