@conference{1866,
  author = {S. Carter and Z. Chen and Steven Cundiff},
  title = {Echo Peak Shift Spectroscopy of Quantum Well Excitons},
  year = {2007},
  publisher = {OSA},
  address = {Baltimore, Maryland},
  url = {https://www.osapublishing.org/abstract.cfm?uri=qels-2007-QMA2\&origin=search},
  note = {JILA Pub. 7888},
}