TY  - RPRT
TI  - Summary of applied research program in thermionic conversion during recent years.
AU  - Lieb, D.
AU  - Rufeh, F.
AU  - Van Someren, L.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19690051184
ID  - 19690051184
ER  -