@misc{indiciaec9e580688029,
  title = {Efficient copper-vapor pulsed laser},
  author = {Russell, G. R. and Nerheim, N. M. and Pivirotto, T. J.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19760000341},
  note = {Source identifier: 19760000341}
}