@techreport{eckert2009indoor,
  author = {Eckert, Juergen and Dressler, Falko and German, Reinhard},
  title = {{An Indoor Localization Framework for Four-rotor Flying Robots Using Low-power Sensor Nodes}},
  year = {2009},
  month = {May},
  institution = {University of Erlangen, Dept. of Computer Science 7},
  number = {02/09},
  type = {Technical Report}
}