Dowell, M.
, Fraser, G.
, Nadal, M.
and Ohno, Y.
(2016),
NIST Response to the Consultative Committee for Photometry and Radiometry (CCPR) Questionnaire on Activities in Radiometry and Photometry, BIPM (International Bureau of Weights and Measures), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921981, http://www.bipm.org/metrology/photometry-radiometry/
(Accessed December 10, 2024)