@article{9618,
  author = {C. Opal and Earl Beaty},
  title = {Measurements of large angle inelastic scattering cross sections for electrons on helium},
  year = {1972},
  journal = {Journal of Physics B: Atomic and Molecular Physics},
  volume = {5},
  pages = {627-635},
  month = {Jan-03-1972},
  issn = {0022-3700},
  doi = {10.1088/0022-3700/5/3/030},
}