Goldstein, G., F. Meinzer, J. Cavelier, P. Jackson, and N. M. Holbrook. “STOMATAL AND ENVIRONMENTAL REGULATION OF WATER USE EFFICIENCY AND CARBON ISOTOPE DISCRIMINATION IN A TROPICAL FOREST CANOPY”. Selbyana, vol. 14, Jan. 1993, p. 24, https://ojs.test.flvc.org/selbyana/article/view/122785.