TY  - RPRT
TI  - Space Shuttle GN and C Development History and Evolution
AU  - Zimpfer, Douglas
AU  - Hattis, Phil
AU  - Ruppert, John
AU  - Gavert, Don
PY  - 2011
UR  - https://ntrs.nasa.gov/citations/20110014833
ID  - 20110014833
ER  -