Atomic lifetimes and transition probabilities in boron-like (Na VII) and beryllium-like (Na VIII) sodium ionsX. Tordoir, E. Biémont, H. P. Garnir, P.-D. Dumont and E. TräbertEur. Phys. J. D, 6 1 (1999) 1-7DOI: https://doi.org/epjd/v6/p1(d8311)