Autor
Centro Nacional de Metrología. CENAM, México
1
Institute for National Measurement Standards. INMS, Canadá
1
Instituto Nacional de Metrologia, Normalização e Qualidade Industrial. INMetro, Brasil
1
Instituto Nacional de Tecnología Industrial. INTI, Argentina
1
National Institute of Standards and Technology. NIST, Estados Unidos
1
Wong, George
1
Wu, Lixue