@misc{indiciaef0ca702a5720,
  title = {Ultrasonic Apparatus for Pulverizing Brittle Material},
  author = {Sherrit, Stewart and Bao, Xiaoqi and Bar-Cohen, Yoseph and Dolgin, Benjamin and Chang, Zensheu},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20110020409},
  note = {Source identifier: 20110020409}
}