@misc{indiciae994e28454eab,
  title = {Ball assisted device for analytical surface sampling},
  author = {ElNaggar, Mariam S and Van Berkel, Gary J and Covey, Thomas R},
  year = {2015},
  url = {https://www.osti.gov/biblio/1224823},
  note = {Source identifier: 1224823}
}