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  - 1971
UR  - https://ntrs.nasa.gov/citations/19710038194
ID  - 19710038194
ER  -