TY  - RPRT
TI  - Unmanned planetary spacecraft chemical rocket propulsion.
AU  - Burlage, H., Jr.
AU  - Gin, W.
AU  - Riebling, R. W.
PY  - 1972
UR  - https://ntrs.nasa.gov/citations/19730025300
ID  - 19730025300
ER  -