1.
Snyman HA, Fouché HJ, Avenant PL, Ratsele C. Frost Sensitivity of Opuntia ficus-indica and O. robusta in a Semiarid Climate of South Africa. J PROF ASSOC CACTUS [Internet]. 2007 Apr. 21 [cited 2025 Oct. 24];9:1-21. Available from: https://jpacd.org/jpacd/article/view/237