Many-body effects in hyperfine interactions in 205Pb+ Sonjoy Majumder, B. K. Sahoo, R. K. Chaudhuri, B. P. Das and D. Mukherjee Eur. Phys. J. D, 41 3 (2007) 441-445 Published online: 15 November 2006 DOI: 10.1140/epjd/e2006-00248-2