1. BIPM, “International equivalence of measurements: the CIPM MRA”. Available Online from: http://www.bipm.org/en/cipm-mra/.
2. BIPM, OIML, ILAC and ISO, “Joint BIPM, OIML, ILAC and ISO declaration on metrological traceability”. Available Online from: http://www.bipm.org/en/worldwide-metrology/bipm-oiml-ilac-iso_joint_declaration.html.
3. Measurement uncertainty and traceability
4. The evaluation of key comparison data
5. Consensus building for interlaboratory studies, key comparisons, and meta-analysis