@misc{indiciaedb6c06608d5c,
  title = {On the solution of the diffusion equations by numerical methods.},
  author = {Barakat, H. Z. and Clark, J. A.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19670035284},
  note = {Source identifier: 19670035284}
}