@article{CTT100672378,
  author = {Katsushi ITO and Hiroaki Nakajima and Shin Sasaki},
  title = {Twisted N=4 Super Yang-Mills Theory in Omega-background},
  journal = {Journal of high Energy Physics},
  year = 2013,
}

@article{CTT100652631,
  author = {Yasuyuki Hatsuda and Katsushi Ito and Yuji Satoh},
  title = {Null-polygonal minimal surfaces in AdS_4 from perturbed W minimal models},
  journal = {Journal of high Energy Physics},
  year = 2013,
}