TY  - RPRT
TI  - NASA's Space Launch System Progress Report
AU  - Singer, Joan A.
AU  - Cook, Jerry R.
AU  - Lyles, Garry M.
AU  - Beaman, David E.
PY  - 2011
UR  - https://ntrs.nasa.gov/citations/20120001637
ID  - 20120001637
ER  -