Stellar laboratories - III. New Ba v, Ba vi, and Ba vii oscillator strengths and the barium abundance in the hot white dwarfs G191−B2B and RE 0503–289T. Rauch, K. Werner, P. Quinet and J. W. KrukA&A, 566 (2014) A10DOI: https://doi.org/10.1051/0004-6361/201423878