@misc{indiciae12a338e33bde,
  title = {Cross section for Ly-alpha emission by electron impact on methane},
  author = {Orient, O. J. and Srivastava, S. K.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810057571},
  note = {Source identifier: 19810057571}
}