TY  - RPRT
TI  - Variational Trajectory Optimization Tool Set: Technical description and user's manual
AU  - Bless, Robert R.
AU  - Queen, Eric M.
AU  - Cavanaugh, Michael D.
AU  - Wetzel, Todd A.
AU  - Moerder, Daniel D.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/19930023192
ID  - 19930023192
ER  -