The Planck constant and its units

@article{Bunker2019ThePC,
  title={The Planck constant and its units},
  author={Philip R. Bunker and Ian M. Mills and Per Jensen},
  journal={Journal of Quantitative Spectroscopy and Radiative Transfer},
  year={2019}
}
Abstract We urge spectroscopists to use the units cycle s − 1 or radian s − 1 , with an appropriate prefix such as kilo as needed, when expressing the value of a transition frequency; the hertz (Hz) should be explicitly defined as being cycle s − 1 . Currently, in The International System of Units (SI), the unit of angular measure (cycle or radian) is omitted and transition frequencies simply have the unit s − 1 which is called the hertz. The use of the symbols ν (or f) and ω is supposed to… 
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