@misc{indiciaec58fa33d38f0,
  title = {Optical nonlinearities in multiple quantum wells: Generalized Elliott formula.},
  author = {D Campi and C Coriasso},
  year = {1995},
  doi = {10.1103/physrevb.51.10719},
  url = {https://pubmed.ncbi.nlm.nih.gov/9977768/},
  note = {Source identifier: 9977768}
}