@inproceedings{thompson2005automatic, 
  title={Automatic detection and classification of features of geologic interest},
  author={Thompson, David and Niekum, Scott and Smith, Trey and Wettergreen, David}, 
  booktitle={Aerospace Conference, 2005 IEEE}, 
  pages={366--377}, 
  year={2005}, 
  organization={IEEE} 
}