@misc{indiciae159d69181960,
  title = {User's manual for three dimensional FDTD version A code for scattering from frequency-independent dielectric materials},
  author = {Beggs, John H. and Luebbers, Raymond J. and Kunz, Karl S.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920011438},
  note = {Source identifier: 19920011438}
}