@inproceedings{obstacleavoidancefordronesusinga3dvfh,
  title = {Obstacle Avoidance for Drones Using a 3DVFH* Algorithm},
  author = {Tanja Baumann},
  year = {2018},
  booktitle = {not clear 2018 4},
  url = {https://drive.google.com/open?id=1yjDtxRrIntr5Mdaj9CCB4IFJn0Iy2-bR},
}