@misc{indiciaefac9fe2fa6b1,
  title = {Two-photon absorption in lanthanide complexes.},
  author = {J Sztucki and W Strek},
  year = {1986},
  doi = {10.1103/physrevb.34.3120},
  url = {https://pubmed.ncbi.nlm.nih.gov/9940045/},
  note = {Source identifier: 9940045}
}