@misc{indiciae6bbf101bf990,
  title = {Nonradiating electromagnetic sources in a nonuniform medium.},
  author = {Natalia K Nikolova and Yotka S Rickard},
  year = {2005},
  doi = {10.1103/physreve.71.016617},
  url = {https://pubmed.ncbi.nlm.nih.gov/15697757/},
  note = {Source identifier: 15697757}
}