@misc{indiciae523d355fa77c,
  title = {Finite difference time domain implementation of surface impedance boundary conditions},
  author = {Beggs, John H. and Luebbers, Raymond J. and Yee, Kane S. and Kunz, Karl S.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920010501},
  note = {Source identifier: 19920010501}
}