TY  - RPRT
TI  - Propulsion System Advances that Enable a Reusable Liquid Fly Back Booster (LFBB)
AU  - Keith, Edward L.
AU  - Rothschild, William J.
PY  - 1998
UR  - https://ntrs.nasa.gov/citations/19990079864
ID  - 19990079864
ER  -