@Inproceedings{holz_uavg_2013,
  author =       {D. Holz and M. Nieuwenhuisen and D. Droeschel and
                  M. Schreiber and S. Behnke},
  title =        {Towards Multimodal Omnidirectional Obstacle
                  Detection for Autonomous Unmanned Aerial Vehicles},
  booktitle =    {Int. Arch. Photogramm. Remote Sens. Spatial
                  Inf. Sci., XL-1/W2},
  pages =        {201--206},
  year =         {2013},
}