@misc{148661,
  author = {Jon Hougen and G Wiersma},
  title = {The Calculation of Rotational Energy Levels and Rotational Line Intensities in Diatomic Molecules},
  year = {2001},
  month = {2001-01-01},
  publisher = {Monograph (NIST MN), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.MONO.115},
  language = {en},
}