1. BIPM, IEC, IFCC, ILAC, ISO, IUPAC, IUPAP, OIML, The International Vocabulary of Metrology, Basic and General Concepts and Associated Terms—VIM, JCGM 200:2008 [ISO/IEC Guide 99], www.bipm.org/publications/guides/vim.html.
2. BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, The International Vocabulary of Basic and General Terms in Metrology, ISO Geneva, 1993.
3. http://irmm.jrc.ec.europa.eu/html/interlaboratory_comparisons/imep/.