Mendoza-Cózatl, David G. and Butko, Emerald and Springer, Franziska and Torpey, Justin W. and Komives, Elizabeth A. and Kehr, Julia and Schroeder, Julian (2008). Identification of high levels of phytochelatins, glutathione and cadmium in the phloem sap of Brassica napus. A role for thiol-peptides in the long-distance transport of cadmium and the effect of cadmium on iron translocation. "Plant Journal", v. 54 (n. 2); pp. 249-259. ISSN 0960-7412.