@misc{indiciae81cd841228ca,
  title = {Mass effects on angular distribution of sputtered atoms},
  author = {Olson, R. R. and King, M. E. and Wehner, G. K.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790055934},
  note = {Source identifier: 19790055934}
}