Barbosa, Roberta Chaiene Almeida, et al. “Gas Exchange of Citrus Rootstocks in Response to Intensity and Duration of Saline Stress”. Semina: Ciências Agrárias, vol. 38, no. 2, May 2017, pp. 725-38, doi:10.5433/1679-0359.2017v38n2p725.