@article{kawai1955,
  title={The Cloudy Crystal Ball Model for 14 Mev Neutron Reactions},
  author={M. Kawai and Haruo Ui and Masayuki Nagasaki},
  year={1955},
  journal={Progress of Theoretical Physics},
  doi={10.1143/ptp.14.263},
  url={https://doi.org/10.1143/ptp.14.263}
}