TY  - RPRT
TI  - Planetary Sciences: American and Soviet Research
AU  - Donahue, Thomas M.
AU  - Trivers, Kathleen Kearney
AU  - Abramson, David M.
PY  - 1991
UR  - https://ntrs.nasa.gov/citations/19910013647
ID  - 19910013647
ER  -