Atomic lifetimes and transition probabilities in boron-like (Na VII) and beryllium-like (Na VIII) sodium ions X. Tordoir, E. Biémont, H. P. Garnir, P.-D. Dumont and E. Träbert Eur. Phys. J. D, 6 1 (1999) 1-7 Published online: 15 April 1999 DOI: 10.1007/PL00021604