TY  - RPRT
TI  - Electric propulsion for communications satellites
AU  - Free, B. A.
AU  - Guman, W. J.
AU  - Herron, B. G.
AU  - Zafran, S.
PY  - 1978
UR  - https://ntrs.nasa.gov/citations/19780049059
ID  - 19780049059
ER  -