Highlights in the work of the BIPM in 2016 (PDF). SIM XXII General Assembly. Montevideo, Uruguay: Sistema Americana de Metrologia. p. 10. Arhivat din original
Highlights in the work of the BIPM in 2016 (PDF). SIM XXII General Assembly. Montevideo, Uruguay. p. 10. Arhivat din original (PDF) la 1 septembrie 2017. Accesat