TY  - RPRT
TI  - A TRAJECTORY OPTIMIZATION TECHNIQUE BASED UPON THE THEORY OF THE SECOND VARIATION
AU  - Kelly, H. J.
AU  - Kopp, R. E.
AU  - Moyer, H. G.
PY  - 1963
UR  - https://ntrs.nasa.gov/citations/19630010882
ID  - 19630010882
ER  -