@misc{indiciaeccf6ebdc3118,
  title = {Probing Planck-Scale physics with a Ne-21/He-3 Zeeman maser},
  author = {Walsworth, Ronald L. and Phillips, David},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20040111374},
  note = {Source identifier: 20040111374}
}