TY  - RPRT
TI  - Spectral Distinctions between the Leading and Trailing Hemispheres of Callisto: New Observations
AU  - W. M. Calvin
AU  - R. N. Clark
PY  - 1993
DO  - 10.1006/icar.1993.1083
UR  - https://pubs.usgs.gov/publication/70017348
ID  - 70017348
ER  -