TY  - RPRT
TI  - Project 5S: A Safe Stepping Stone into the Solar System
AU  - Brophy, John
AU  - Culick, Fred
AU  - Dimotakis, Paul
AU  - Friedman, Louis
PY  - 2012
UR  - https://ntrs.nasa.gov/citations/20150008758
ID  - 20150008758
ER  -