Barbour, M. M., Schurr, U., Henry, B. K., Wong, S. C., & Farquhar, G. D. (2000). Variation in the Oxygen Isotope Ratio of Phloem Sap Sucrose from Castor Bean. Evidence in Support of the Péclet Effect. American Society of Plant Physiologists.

Barbour, Margaret M., Ulrich Schurr, Beverley K. Henry, S. Chin Wong, و Graham D. Farquhar. Variation in the Oxygen Isotope Ratio of Phloem Sap Sucrose From Castor Bean. Evidence in Support of the Péclet Effect. American Society of Plant Physiologists, 2000.

Barbour, Margaret M., et al. Variation in the Oxygen Isotope Ratio of Phloem Sap Sucrose From Castor Bean. Evidence in Support of the Péclet Effect. American Society of Plant Physiologists, 2000.