@article{CTT100634642,
  author = {Katsushi Ito and Satoshi Kamoshita and Shin Sasaki},
  title = {Deformed BPS Monopole in Omega-background},
  journal = {Physics Letters B},
  year = 2012,
}

@article{CTT100620400,
  author = {Katsushi Ito and Satoshi Kamoshita and Shin Sasaki},
  title = {BPS Monopole Equation in Omega-background},
  journal = {Journal of High Energy Physics},
  year = 2011,
}