@article{UmHinrichsenKwonetal.2015,
  author    = {Jaegon Um and Haye Hinrichsen and Chulan Kwon and Hyunggyu Park},
  title     = {Total cost of operating an information engine},
  journal   = {New Journal of Physics},
  volume    = {17},
  number    = {085001},
  doi       = {10.1088/1367-2630/17/8/085001},
  year      = {2015},
}