Frankfurt EBIS development: Fundamental research and new applications : Proceedings of 5th international conference on ion sources - Kleinod, M.; Becker, R.; Kester, O.; Lakatos, A.; Thomae, H.; Zipfel, B.; Klein, H. (American Institute of Physics (AIP), 1994)
http://dx.doi.org/10.1063/1.1145065
Keywords: U; ZN