@article{11403,
  author = {M. Blaha},
  title = {Collision excitation of positive ions in pq configuration: transition between levels of the P term. Part I},
  year = {1968},
  journal = {Annales d\textquoterightAstrophysique},
  volume = {31},
  chapter = {311},
  pages = {311-12},
  url = {http://adsabs.harvard.edu/full/1968AnAp...31..311B},
  note = {JILA Pub. 369},
}