@misc{indiciae49c04d03ea60,
  title = {Crystal whispering gallery mode optical resonators},
  author = {Maleki, Lutfollah and Matsko, Andrey B. and Savchenkov, Anatoliy and Strekalov, Dmitry V.},
  year = {2009},
  url = {https://ntrs.nasa.gov/citations/20100006891},
  note = {Source identifier: 20100006891}
}