@misc{indiciae85fb64f58f4c,
  title = {Sum-frequency generation echo and grating from interface},
  author = {Volkov, Victor},
  year = {2014},
  doi = {10.1063/1.4896535},
  url = {https://www.osti.gov/biblio/22436624},
  note = {Source identifier: 22436624}
}