@misc{indiciae6c0e0fbaeefd,
  title = {An efficient numerical integral in three-dimensional electromagnetic field computations},
  author = {Whetten, Frank L. and Liu, Kefeng and Balanis, Constantine A.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900064072},
  note = {Source identifier: 19900064072}
}