@article{8809,
  author = {Arthur Phelps and B. Jelenković and L. Pitchford},
  title = {Simplified models of electron excitation and ionization at very high E/n},
  year = {1987},
  journal = {Physical Review A},
  volume = {36},
  pages = {5327-5336},
  month = {Jan-12-1987},
  issn = {0556-2791},
  doi = {10.1103/PhysRevA.36.5327},
}