TY - ICOMM AU - David Duewer AU - Hugo Gasca-Aragon AU - Katrice Lippa AU - Blaza Toman C1 - www.bipm.org C2 - BIPM DA - 2012-08-22 LA - en PB - BIPM PY - 2012 TI - Comparison of value-assigned CRMs and PT materials: experimental design and data evaluation ER -