@article{3328,
  author = {Joseph Kerckhoff and R. Anderson and H.-S. Ku and W. Kindel and K. Cicak and R. Simmonds and Konrad Lehnert},
  title = {Tunable Coupling to a Mechanical Oscillator Circuit Using a Coherent Feedback Network},
  year = {2013},
  journal = {Physical Review X},
  volume = {3},
  pages = {021013},
  month = {2013-06},
  doi = {10.1103/PhysRevX.3.021013},
}