TY  - RPRT
TI  - Standard Reference Materials : A look at techniques for the dimensional calibration of standard microscopic particles/
AU  - Swyt, Dennis A
PY  - 1983
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS SP 260-85
DO  - 10.6028/NBS.SP.260-85
ER  -