@misc{indiciaef54c7fa2b379,
  title = {Fiber-laser frequency combs with subhertz relative linewidths.},
  author = {W C Swann and J J McFerran and I Coddington and N R Newbury and I Hartl and M E Fermann and P S Westbrook and J W Nicholson and K S Feder and C Langrock and M M Fejer},
  year = {2006},
  doi = {10.1364/ol.31.003046},
  url = {https://pubmed.ncbi.nlm.nih.gov/17001395/},
  note = {Source identifier: 17001395}
}