@article{4523,
  author = {D. Luo and A. Pradhan},
  title = {R-matrix calculations for electron-impact excitation of C+, N2+, and O3+ including fine structure},
  year = {1990},
  journal = {Physical Review A},
  volume = {41},
  pages = {165-173},
  month = {Jan-01-1990},
  issn = {1050-2947},
  url = {http://link.aps.org/doi/10.1103/PhysRevA.41.165},
  doi = {10.1103/PhysRevA.41.165},
}