GRÜNWALDT, . M. .; FELKER, . .; GUEVARA, . C. .; GRÜNWALDT, . G. . Opuntia ellisiana Griffiths as livestock feed in areas similar to USDA cold hardiness zones 6-7. Revista de la Facultad de Ciencias Agrarias UNCuyo, [S. l.], v. 52, n. 1, p. 372–390, 2020. Disponível em: https://revistas.apps.sid.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3078. Acesso em: 6 nov. 2025.