@article{eckert2011indoor,
  author = {Eckert, Juergen and German, Reinhard and Dressler, Falko},
  title = {{An Indoor Localization Framework for Four-rotor Flying Robots Using Low-power Sensor Nodes}},
  journal = {IEEE Transactions on Instrumentation and Measurement},
  pages = {336-344},
  volume = {60},
  number = {2},
  year = {2011},
  month = {February},
  publisher = {IEEE},
  doi = {10.1109/TIM.2010.2085850}
}