@misc{indiciae4539c6105ffa,
  title = {Reducing Extra-Terrestrial Excavation Forces with Percussion},
  author = {Schuler, Jason and Mueller, Robert and Smith, Drew and Nick, Andrew and Lippitt, Thomas},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20120015456},
  note = {Source identifier: 20120015456}
}