@article{CTT100716668,
  author = {Y. Kawamura and Y. Matsumura and Y. Yamazaki and S. Kaneko and N. Kokubo and S. Okuma},
  title = {Unusual current-voltage characteristics and dynamic correlation of rotating vortex-lattice rings},
  journal = {Supercond. Sci. Technol.},
  year = 2015,
}

@inproceedings{CTT100716669,
  author = {E. Murakami and A. Ochi and Y. Kawamura and S. Kaneko and S. Okuma},
  title = {Magnetic-Field-Induced Metallic Phase at Low Temperature in Two-Dimensional Superconductors},
  booktitle = {Phys. Procedia},
  year = 2015,
}

@inproceedings{CTT100716670,
  author = {R. Nitta and Y. Kawamura and S. Kaneko and S. Okuma},
  title = {Reversible to irreversible flow transition of periodically driven vortices in the strip sample},
  booktitle = {Phys. Procedia},
  year = 2015,
}