Progress in the analysis of the even parity configurations of tantalum atomB. Arcimowicz, J. Dembczyński, P. Głowacki, J. Ruczkowski, M. Elantkowska, G.H. Guthöhrlein and L. WindholzEur. Phys. J. Special Topics, 222 9 (2013) 2085-2102DOI: https://doi.org/10.1140/epjst/e2013-01988-6