Fröschle, M., Speth, E., Falter, H., Fantz, U., Franzen, P., Riedl, R., et al. (2005). Progress in the Development of RF Driven Negative Ion Sources for ITER NBI. Talk presented at 21st IEEE/NPSS Symposium on Fusion Engineering (SOFE). Knoxville,TN. 2005-09-26 - 2005-09-29.