@misc{indiciaef7a0d4c5821c,
  title = {Divergence preserving discrete surface integral methods for Maxwell's curl equations using non-orthogonal unstructured grids},
  author = {Madsen, Niel K.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920020451},
  note = {Source identifier: 19920020451}
}