@article{NSR1991PI11,
  author="W. {Pietsch} and G. H. {Guthohrlein} and H. {Jager} and L. {Windholz}",
  title="Hyperfinestructure Constants of the Eu-I Level 4f$^{7}$6s6p z$^{6}$P$_{7 / 2}$",
  journal="Z.Phys.",
  year=1991,
  volume="D21",
  pages="189"
}
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*  Note: Translation from NSR format to bibTex is imperfect. Entries       *
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*    "secondary" sources such as conference proceedings, lab reports, etc. *
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