@article{CTT100782955,
  author = {Junichi Tsuda and Yuuki Yamanaka and Hidetoshi Nishimori},
  title = {Energy gap at first-order quantum phase transitions: An anomalous case},
  journal = {Journal of the Physical Society of Japan},
  year = 2013,
}

@article{CTT100782957,
  author = {Ryoji Miyazaki and Hidetoshi Nishimori},
  title = {Real-space renormalization group approach to the random transverse-field Ising model in finite dimensions},
  journal = {Physical Review E},
  year = 2013,
}