Fantz, U., Franzen, P., Falter, H. D., Kraus, W., Berger, M., Christ-Koch, S., et al. (2007). Large low pressure, high power RF sources for negative hdyrogen ions for fusion applications. Talk presented at 28th International Conference on Phenomena in Ionized Gases (ICPIG). Prague. 2007-07-15 - 2007-07-20.