TY  - RPRT
TI  - Physical properties of the surface materials at the Viking landing sites on Mars
AU  - H. J. Moore
AU  - R.E. Hutton
AU  - G.D. Clow
AU  - C.R. Spitzer
PY  - 1987
DO  - 10.3133/pp1389
UR  - https://pubs.usgs.gov/publication/pp1389
ID  - pp1389
ER  -