@misc{indiciaef9562a98d6eb,
  title = {Foldable Instrumented Bits for Ultrasonic/Sonic Penetrators},
  author = {Bar-Cohen, Yoseph and Badescu, Mircea and Iskenderian, Theodore and Sherrit, Stewart and Bao, Xiaoqi and Linderman, Randel},
  year = {2010},
  url = {https://ntrs.nasa.gov/citations/20100009656},
  note = {Source identifier: 20100009656}
}