Francium sources and traps for fundamental interaction studies G. Stancari, S. N. Atutov, R. Calabrese, L. Corradi, A. Dainelli, C. de Mauro, A. Khanbekyan, E. Mariotti, P. Minguzzi, L. Moi et al. (3 more) Eur. Phys. J. Special Topics, 150 (2007) 389-392 Published online: 08 December 2007 DOI: 10.1140/epjst/e2007-00355-8