@misc{indiciaeff692d91416b,
  title = {Liquid laser cavities},
  author = {Bjorklund, S. and Filipescu, N. and Kellermeyer, G. L. and Mc Avoy, N.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690000234},
  note = {Source identifier: 19690000234}
}