TY  - RPRT
TI  - Interplanetary missions for the late twentieth century
AU  - Wallace, R. A.
AU  - Blume, W. H.
AU  - Yen, C. L.
AU  - Hulkower, N. D.
PY  - 1985
UR  - https://ntrs.nasa.gov/citations/19850053236
ID  - 19850053236
ER  -