TY  - CONF
AU  - Willie May
C2  - Proceedings of the 1st Interamerican Workshop on Metrology in Chemistry, Rio de Janeiro, 
DA  - 1997-12-16
LA  - en
PB  - Proceedings of the 1st Interamerican Workshop on Metrology in Chemistry, Rio de Janeiro, 
PY  - 1997
TI  - Reference Materials and Their Impact on World Trace
ER  -