@article{NSR1992BO28,
  author="G. {Bollen} and J. -J. {Kluge} and Th. {Otto} and G. {Savard} and L. {Schweikhard} and H. {Stolzenberg} and G. {Audi} and R. B. {Moore} and G. {Rouleau} and {the ISOLDE Collaboration}",
  title="Mass Determination of Francium and Radium Isotopes by a Penning Trap Mass Spectrometer",
  journal="J.Mod.Opt.",
  year=1992,
  volume="39",
  pages="257"
}
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