TY  - BOOK
AU  - Marec,J P
TI  - OPTIMAL TRANSFERS BETWEEN CLOSE ELLIPTICAL ORBITS
U1  - NASA 
PY  - 1969///
CY  - 
PB  - Nasa, Washington, D.C.
N1  - Bound With Nasa Tt F-549-553,555.Lack No-550-551
ER  -