@misc{indiciae7b3c21be1c13,
  title = {Modal Ring Method for the Scattering of Electromagnetic Waves},
  author = {Baumeister, Kenneth J. and Kreider, Kevin L.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930011071},
  note = {Source identifier: 19930011071}
}