@misc{indiciaedbc7d52671aa,
  title = {A finite element conjugate gradient FFT method for scattering},
  author = {Collins, Jeffery D. and Ross, Dan and Jin, J.-M. and Chatterjee, A. and Volakis, John L.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910009993},
  note = {Source identifier: 19910009993}
}