@article{Zhu:2012,
  author  = "J. Zhu and G. Li and Z. Ficek",
  title   = "Two-particle dark-state cooling of a nanomechanical resonator",
  journal = "Physical Review A",
  volume  = "Vol. 85",
  number  = "no. 3",
  pages   = "1--11",
  year    = "2012",
}