@article{179056,
  author = {Wayne Itano},
  title = {Quadrupole moments and hyperfine constants of metastable states of Ca<sup>+</sup>, Sr<sup>+</sup>, Ba<sup>+</sup>, Yb<sup>+</sup>, Hg<sup>+</sup>, and Au},
  year = {2006},
  number = {73},
  month = {2006-02-17},
  publisher = {Physical Review A (Atomic, Molecular and Optical Physics)},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50237},
  language = {en},
}