TY  - RPRT
TI  - Coordinate system influence on the regularized trajectory optimization problem.
AU  - Lewallen, J. M.
AU  - Schwausch, O. A.
AU  - Tapley, B. D.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19690060557
ID  - 19690060557
ER  -