1. BIPM: The International System of Units (SI), Bureau International des Poids et Mesures, 9th edn., V2.01, updated December 2022, ISBN 978-92-822-2272-0, https://bipm.org/en/publications/sibrochure (last access: February 2024), 2019.
2. Cladé, P., Biraben, F., Julien, L., Nez, F., and Guellati-Khelifa, S.: Precise determination of the ratio h/mu: a way to link microscopic mass to the new kilogram, Metrologia, 53, A75–A82, https://doi.org/10.1088/0026-1394/53/5/A75, 2016.
3. Emerson, W. H.: One as a “unit” in expressing the magnitudes of quantities, Metrologia, 41, L26, https://doi.org/10.1088/0026-1394/41/4/L03, 2004.
4. Hutzschenreuter, D., Härtig, F., Heeren, W., Wiedenhöfer, T., Forbes, A., Brown, C., Smith, I., Rhodes, S., Linkeová, I., Sýkora, J., Zelený, V., Ačko, B., Klobučar, R., Nikander, P., Elo, T., Mustapää, T., Kuosmanen, P., Maennel, O., Hovhannisyan, K., and Paciello, V.: SmartCom Digital System of Units (D-SI), Guide for the use of the metadata-format used in metrology for the easy-to-use, safe, harmonised and unambiguous digital transfer of metrological data (D-SI 1.3), Zenodo, https://doi.org/10.5281/zenodo.3522631, 2019.
5. Johansson, I.: Metrological thinking needs the notions of parametric quantities, units and dimensions, Metrologia, 47, 219, https://doi.org/10.1088/0026-1394/47/3/012, 2010.