@conference{5532,
  author = {B. Yang and K. Schafer and Barry Walker and K. Kulander and L. DeMauro and P. Agostini},
  title = {Up, 3up, 11UP: above-threshold ionization revisited},
  year = {1994},
  publisher = {Polska Akademia Nauk, Warszawa, Poland},
  address = {Szczyrk, Poland},
  note = {JILA Pub. 5316},
}