TY  - RPRT
TI  - Reducing the risk to Mars: The gas core nuclear rocket
AU  - Howe, S. D.
AU  - DeVolder, B.
AU  - Thode, L.
AU  - Zerkle, D.
PY  - 1998
UR  - https://ntrs.nasa.gov/citations/19980210311
ID  - 19980210311
ER  -