TY  - RPRT
TI  - Space transportation systems, 1980-2000
AU  - Cohan, C. J.
AU  - Olstad, W. B.
AU  - Patterson, D. W.
AU  - Salkeld, R.
PY  - 1978
UR  - https://ntrs.nasa.gov/citations/19790037585
ID  - 19790037585
ER  -