TY  - RPRT
TI  - Lunar terrain mapping and relative-roughness analysis
AU  - Lawrence C. Rowan
AU  - John F. McCauley
AU  - Esther A. Holm
PY  - 1971
DO  - 10.3133/pp599g
UR  - https://pubs.usgs.gov/publication/pp599G
ID  - pp599G
ER  -