@article{NSR1979AB14,
  author="R. {Abela} and G. {Backenstoss} and M. {Izycki} and W. {Kowald} and I. {Schwanner} and L. {Tauscher} and H. J. {Weyer} and M. {Doerr} and W. {Fetscher} and R. {Guigas} and D. {Gotta} and H. {Poth} and G. {Schmidt} and H. {Ullrich}",
  title="Isotopieeffekte an leichten pionischen Atomen",
  journal="Helv.Phys.Acta",
  year=1979,
  volume="52",
  pages="413"
}
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