References
==========

.. [ISO80000] `ISO 80000-1:2009(E) "Quantities and units — Part 1: General" <https://www.iso.org/standard/30669.html>`_, International Organization for Standardization.
.. [Quincey] `"Angles in the SI: a detailed proposal for solving the problem" <https://arxiv.org/pdf/2108.05704.pdf>`_, Quincey, Paul (1 October 2021)