@misc{indiciaeb9b54f52651b,
  title = {Quantifying Void Ratio Variation in Sand using Computed Tomography},
  author = {Alshibli, Khalid A. and Batiste, Susan N. and Swanson, Roy A. and Sture, Stein and Costes, Nicholas C. and Lankton, Mark R.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20010069812},
  note = {Source identifier: 20010069812}
}