@article{NSR1990FA13,
  author="A. {Faessler}",
  title="The Double Beta-Decay and Grand Unification",
  journal="Fizika(Zagreb)",
  year=1990,
  volume="22",
  pages="255"
}
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*  Note: Translation from NSR format to bibTex is imperfect. Entries       *
*    may require editing before use. This is especially true for           *
*    "secondary" sources such as conference proceedings, lab reports, etc. *
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