TY  - RPRT
TI  - Radar characteristics of Viking 1 landing sites
AU  - G.L. Tyler
AU  - D.B. Campbell
AU  - G.S. Downs
AU  - R.R. Green
AU  - H. J. Moore
PY  - 1976
DO  - 10.1126/science.193.4255.812
UR  - https://pubs.usgs.gov/publication/70010932
ID  - 70010932
ER  -