TY  - RPRT
TI  - Martian polar cap boundaries, part A Final report
AU  - Baum, W. A.
AU  - Fischbacher, G. E.
AU  - Martin, L. J.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19700024751
ID  - 19700024751
ER  -