TY  - RPRT
TI  - NASA's Space Launch System: An Evolving Capability for Exploration
AU  - Robinson, Kimberly F.
AU  - Hefner, Keith
AU  - Hitt, David
PY  - 2015
UR  - https://ntrs.nasa.gov/citations/20150016498
ID  - 20150016498
ER  -