TY  - RPRT
TI  - Circularity of Martian craters.
AU  - Oberbeck, V. R.
AU  - Aoyagi, M.
AU  - Murray, J. B.
PY  - 1972
UR  - https://ntrs.nasa.gov/citations/19730052998
ID  - 19730052998
ER  -