@conference{1998,
  author = {X. Zhang and A. Lytle and D. Gaudiosi and Tenio Popmintchev and Henry Kapteyn and Margaret Murnane and O. Cohen},
  title = {SPIE Proceedings: Nonlinear optics for high-order frequency conversion: applied attosecond science},
  year = {2007},
  journal = {unknown},
  volume = {6455},
  pages = {64550F - 64550F-10},
  month = {2007-01},
  publisher = {SPIE},
  address = {San Jose, CA},
  doi = {10.1117/12.715068},
}