TY  - RPRT
TI  - Propulsion system advances that enable a reusable Liquid Fly Back Booster (LFBB)
AU  - Keith, E. L.
AU  - Rothschild, W. J.
PY  - 1998
UR  - https://ntrs.nasa.gov/citations/19990007761
ID  - 19990007761
ER  -