Elmquist, R.
, Hourdakis, E.
, Jarrett, D.
and Zimmerman, N.
(2004),
Direct Resistance Comparisons From the Qhr to 100 Megohm Using a Cryogenic Current Comparator, Proc., Conference on Precision Electromagnetic Measurements (CPEM), London, 1, UK, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31595
(Accessed November 12, 2024)