@article{814686,
  author = {W Liu and Charles Clark},
  title = {Intensity-Dependence of the Phase of Harmonics in One- and Two-Frequency Laser Fields},
  year = {1996},
  number = {53},
  month = {1996-01-01 00:01:00},
  publisher = {Physical Review A (Atomic, Molecular and Optical Physics)},
  language = {en},
}