Our article about measurements of highly charged bismuth ions at the ESR appeared

A new article appeared about our measurements of highly charged bismuth ions at the experimental storage ring ESR:
Rodolfo Sánchez et al 2017 J. Phys. B: At. Mol. Opt. Phys. 50 085004.
It is a detailed discussion of the data published 2014 as a Rapid Communication in Phys. Rev. A and presents an extensive description of the experimental setup and all information to judge our estimations of systematic uncertainties.