@article{CTT100924173,
  author = {Mika Goto and Tadaaki Tomikawa and Toshiyuki Sueyoshi},
  title = {Efficiency and Mergers and Acquisitions of Electric Utility Companies},
  journal = {},
  year = 2024,
}

@article{CTT100798317,
  author = {Toshiyuki Sueyoshi and Mika Goto},
  title = {DEA non-radial approach for resource allocation and energy usage to enhance corporate sustainability in Japanese manufacturing industries},
  journal = {Energies},
  year = 2019,
}