@misc{indiciaea49c4a0e0556,
  title = {Erbium point defects in silicon.},
  author = {M Needels and M Schlüter and M Lannoo},
  year = {1993},
  doi = {10.1103/physrevb.47.15533},
  url = {https://pubmed.ncbi.nlm.nih.gov/10005943/},
  note = {Source identifier: 10005943}
}