@conference{1111,
  author = {V. Lorenz and D. Kim and Steven Cundiff},
  title = {Virtual-real interference in a dense potassium vapor},
  year = {2003},
  publisher = {IEEE},
  address = {Baltimore, MD, USA},
  url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=1276405},
  doi = {10.1109/QELS.2003.238124},
  note = {JILA Pub. 7323},
}