@misc{indiciae8472d48695d7,
  title = {Hydrogen maser development at Laval University},
  author = {Vanier, J. and Racine, G. and Kunski, R. and Picard, M.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810018967},
  note = {Source identifier: 19810018967}
}