@article{856,
  author = {Lulu Liu and Alexander Woolf and Alejandro Rodriguez and Federico Capasso},
  title = {Absolute Position Total Internal Reflection Microscopy with an Optical Tweezer},
  year = {2014},
  journal = {PNAS},
  volume = {111},
  number = {52},
  pages = {5609{\textendash}5615},
  url = {http://www.pnas.org/content/early/2014/12/12/1422178112.abstract},
}