@article{NSR1970KA37,
  author="K. {Kayser} and W. {Collin} and P. {Filss} and S. {Guldbakke} and G. {Nolte} and H. {Reich} and J. O. {Trier} and W. {Witschel}",
  title="Untersuchung der Kernphotoreaktionen $^{12}$C($\gamma$, n), $^{12}$C($\gamma$, 2n), $^{39}$K($\gamma$, n) und $^{40}$Ca($\gamma$, np) bis zur Mesonenschwelle",
  journal="Z.Phys.",
  year=1970,
  volume="239",
  pages="447"
}
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