TY  - RPRT
TI  - Two former faces of the moon
AU  - D.E. Wilhelms
AU  - D.E. Davis
PY  - 1971
DO  - 10.1016/0019-1035(71)90115-1
UR  - https://pubs.usgs.gov/publication/70010331
ID  - 70010331
ER  -