TY  - RPRT
TI  - Optimization of ''ephemeridal'' parameters for minimum propellant requirements on multiplanet roundtrip swingby-stopover missions.
AU  - Mead, C. W.
AU  - Young, A. C.
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19680057758
ID  - 19680057758
ER  -