@misc{indiciaed19cccfb5331,
  title = {Tunable resonator-based devices for producing variable delays and narrow spectral linewidths},
  author = {Savchenkov, Anatoliy and Maleki, Lutfollah and Matsko, Andrey B. and Ilchenko, Vladimir},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20080008696},
  note = {Source identifier: 20080008696}
}