@article{CTT100598838,
  author = {H. Ohta and M. Fujisawa and N. Souda and S. Okubo and E. Ohmichi and T. Sakurai and H. Kikuchi and Toshio Ono and H. Tanaka and K. Matsubayashi and Y. Uwatoko},
  title = {Magnetic Susceptibility Measurement Under High Pressure and Magnetization Measurement of S=1/2 Dioptase Lattice Antiferromagnet},
  journal = {J. Phys: Conf. Ser.},
  year = 2009,
}

@article{CTT100598842,
  author = {H. Ohta and S. Okubo and N. Souda and M. Tomoo and T. Sakurai and T. Yoshida and E. Ohmichi and M. Fujisawa and H. Tanaka and R. Kato},
  title = {Development and Applications of High-Frequency ESR up to 55 T},
  journal = {Appl. Magn. Reson.},
  year = 2009,
}