TY  - RPRT
TI  - Technical activities 1989: Electron and Optical Physics Division
AU  - Clark, C W
PY  - 1990
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 90-4287
DO  - 10.6028/NIST.IR.90-4287
ER  -