J. M. . Grünwaldt, P. . Felker, J. C. . Guevara, y E. G. . Grünwaldt, «Opuntia ellisiana Griffiths as livestock feed in areas similar to USDA cold hardiness zones 6-7», Rev. FCA UNCUYO, vol. 52, n.º 1, pp. 372–390, jun. 2020.