TY  - BOOK
AU  - Jackson, Charlie M.
TI  - Estimates of minimum energy requirements for range-controlled return of a nonlifting satellite from a circular orbit [NASA TN D-980]
PY  - 1961///
CY  - Washington, D.C.
PB  - Nasa
KW  - Energy Requirements
N1  - Bound With Nasa Tn D-971-979; Technical Note D-980
ER  -