TY  - RPRT
TI  - Consideration of sample return and the exploration strategy for Mars
AU  - Bogard, D. C.
AU  - Duke, M. B.
AU  - Gibson, E. K.
AU  - Minear, J. W.
AU  - Nyquist, L. E.
AU  - Phinney, W. C.
PY  - 1979
UR  - https://ntrs.nasa.gov/citations/19790019931
ID  - 19790019931
ER  -