TY  - RPRT
TI  - Low accelerating voltage pitch standard based on the modification of NBS SRM 484 
AU  - Postek, Michael T
PY  - 1987
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 87-3665
DO  - 10.6028/NBS.IR.87-3665
ER  -