Tests of advanced RF off-axis current drive techniques on DIII-DR.I. Pinsker, X. Chen, J.M. Lohr, C.P. Moeller, M. Porkolab, M.W. Brookman, C.C. Petty, S.J. Wukitch, G.M. Wallace and R.J. ButteryEPJ Web Conf., 203 (2019) 02008DOI: https://doi.org/10.1051/epjconf/201920302008