@article{CTT100626146,
  author = {Youn-Kyu Choi and Takuya Hoshina and Hiroaki Takeda and Takaaki Tsurumi},
  title = {Effect of Oxygen Vacancy and Oxygen Vacancy Migration on Dielectric Response of BaTiO3-Based Ceramics},
  journal = {Jpn. J. Appl. Phys.},
  year = 2011,
}

@article{CTT100625803,
  author = {Youn-Kyu Choi and Takuya Hoshina and Hiroaki Takeda and Jong-Min Oh and Takaaki Tsurumi},
  title = {The Effect of Oxygen Vacancies on Dielectric Responses of BaTiO3 Based Ceramics in the Ultra-Wide Frequency Range},
  journal = {Key Engin. Mater.},
  year = 2011,
}

@article{CTT100615685,
  author = {Youn-Kyu Choi and Takuya Hoshina and Hiroaki Takeda and Takashi Teranishi and Takaaki Tsurumi},
  title = {Effects of oxygen vacancies and grain sizes on the dielectric response},
  journal = {Applied Physics Letters},
  year = 2010,
}

@article{CTT100612957,
  author = {Youn Kyu CHOI and Takuya HOSHINA and Hiroaki TAKEDA and Takaaki TSURUMI},
  title = {Effects of Ca and Zr additions and stoichiometry on the electrical properties of barium titanate-based ceramics},
  journal = {Journal of the Ceramic Society of Japan},
  year = 2010,
}

@inproceedings{CTT100609001,
  author = {Youn Kyu Choi and Takuya Hoshina and Hiroaki Takeda and Takaaki tsurumi},
  title = {Effect of Ca and Zr Incorporation into(Ba1-xCax)m(Ti1―yZry)O3 Ceramics},
  booktitle = {},
  year = 2009,
}

@inproceedings{CTT100608984,
  author = {Youn Kyu Choi and Takuya Hoshina and Hiroaki Takeda and Takaaki Tsurumi},
  title = {Effect of Ca and Zr incorporation into BaTiO3 ceramics on their electrical properties},
  booktitle = {},
  year = 2009,
}

@inproceedings{CTT100582831,
  author = {Youn-Kyu Choi and Takuya Hoshina and Takaaki Tsurumi},
  title = {The study of Zr-doped BCTZ ceramics sintered in reducing atmosphere with high frequency},
  booktitle = {},
  year = 2008,
}