@misc{indiciae0501a8d61281,
  title = {Electromagnetic interactions in multiconnected spaces.},
  author = {S Olariu and Iovitzu Popescu I},
  year = {1986},
  doi = {10.1103/physrevd.33.1701},
  url = {https://pubmed.ncbi.nlm.nih.gov/9956819/},
  note = {Source identifier: 9956819}
}