@article{224061,
  author = {Steven Jefferts and Stephan Barlow and Thomas Heavner and Neil Ashby},
  title = {Measurement of the Microwave Lensing Shift in NIST-F1 and NIST-F2},
  year = {2015},
  number = {723},
  month = {2015-10-12},
  publisher = {Metrologia},
  language = {en},
}