@article{NSR1970KO41,
  author="S. -I. {Koyama} and K. {Takahashi} and M. {Yamada}",
  title="Gross Theory of $\beta$-Decay and its Application to the Fermi Matrix Element",
  journal="Progr.Theoret.Phys.",
  year=1970,
  volume="44",
  pages="663"
}
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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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