@InProceedings{thrun03:system,
  author = 	 { S. Thrun and D. H{\"a}hnel and D. Ferguson and M. Montemerlo and R. Triebel and W. Burgard and C. Baker and Z. Omohundro and S. Thayer and and W. Whittaker},
  title = 	 {A system for volumetric robotic mapping of underground mines},
  booktitle = 	 {"Proc.~of the International Conference on Robotics and Automation(ICRA)"},
  year =	 2003
}