Garcia-Regana, J. M., Turkin, Y., Kleiber, R., Beidler, C. D., Helander, P., Velasco, J. L., et al. (2013). Electrostatic potential variation within flux surfaces and its impact on impurity transport in stellarators. Talk presented at Joint 19th International Stellarator/Heliotron Workshop (ISHW) and 16th IEA-Reversed Field Pinch (RFP) Workshop. Padova. 2013-09-16 - 2013-09-20.