@article{2884,
  keywords = {pfc},
  author = {Hongcheng Ni and Shaohao Chen and Camilo Ruiz and Andreas Becker},
  title = {Selection rules in the few-photon double ionization of the helium atom},
  year = {2011},
  journal = {Journal of Physics B: Atomic, Molecular and Optical Physics},
  volume = {44},
  pages = {175601},
  month = {2011-08},
  doi = {10.1088/0953-4075/44/17/175601},
}