TY  - RPRT
TI  - Interplanetary low-thrust mission design via Chebychev optimization methods
AU  - Hahn, D. W.
AU  - Itzen, B. F.
AU  - Johnson, F. T.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19700059116
ID  - 19700059116
ER  -