@article{coles2011integrating,
  title = {Integrating haptics with augmented reality in a femoral palpation and needle insertion training simulation},
  author = {Coles, Timothy R and John, Nigel W and Gould, Derek and Caldwell, Darwin G and others},
  journal = {Haptics, IEEE Transactions on},
  volume = {4},
  number = {3},
  pages = {199--209},
  year = {2011},
  publisher = {IEEE}
}