@article{GageikStrohmeierMontenegro2013,
  author    = {Nils Gageik and Michael Strohmeier and Sergio Montenegro},
  title     = {An Autonomous UAV with an Optical Flow Sensor for Positioning and Navigation},
  journal   = {International Journal of Advanced Robotic Systems},
  doi       = {10.5772/56813},
  year      = {2013},
}