@misc{indiciae35cda1041189,
  title = {cw photon echo.},
  author = {M Mitsunaga and R Kachru and E Xu and MK Kim},
  year = {1989},
  doi = {10.1103/physrevlett.63.754},
  url = {https://pubmed.ncbi.nlm.nih.gov/10041169/},
  note = {Source identifier: 10041169}
}