@article{10193,
  author = {S.-I. Chu},
  title = {Rotational excitation of symmetric-top molecular ions by electron impact},
  year = {1975},
  journal = {Physical Review A},
  volume = {12},
  pages = {396-405},
  month = {Jan-08-1975},
  issn = {0556-2791},
  url = {http://link.aps.org/doi/10.1103/PhysRevA.12.396},
  doi = {10.1103/PhysRevA.12.396},
}