@misc{indiciae5fbecdfdf790,
  title = {Phase measurement device using inphase and quadrature components for phase estimation},
  author = {Halverson, Peter G. and Ware, Brent and Shaddock, Daniel A. and Spero, Robert E.},
  year = {2009},
  url = {https://ntrs.nasa.gov/citations/20090042940},
  note = {Source identifier: 20090042940}
}