@inproceedings{HuenerbeinHamannRueteretal.2006,
  author    = {Karen von H{\"u}nerbein and Hans-Joachim Hamann and Eckhard R{\"u}ter and Wolfgang Wiltschko},
  title     = {The GPS flight recorder for homing pigeons works : design and first results},
  year      = {2006},
}