TY  - RPRT
TI  - Optimal symmetric flight with an intermediate vehicle model
AU  - Kelley, H. J.
AU  - Cliff, E. M.
AU  - Menon, P. K. A.
PY  - 1983
UR  - https://ntrs.nasa.gov/citations/19830060497
ID  - 19830060497
ER  -