TY  - RPRT
TI  - Minimal beam exposure with a field emission source.
AU  - M Ohtsuki
AU  - E Zeitler
PY  - 1975
DO  - 10.1016/s0304-3991(75)80021-0
UR  - https://pubmed.ncbi.nlm.nih.gov/1236030/
ID  - 1236030
ER  -