TY  - RPRT
TI  - Evaluation of a semi-active gravity gradient system. Volume I - Technical summary
AU  - Nishinaga, R. G.
AU  - Wheeler, P. C.
AU  - Williams, H. L.
AU  - Zaremba, J. G.
PY  - 1966
UR  - https://ntrs.nasa.gov/citations/19670002703
ID  - 19670002703
ER  -