TY  - RPRT
TI  - Models of planetary rings
AU  - Esposito, L. W.
AU  - Brophy, T. G.
AU  - Stewart, Glen R.
AU  - Yanamandra-Fisher, P. A.
PY  - 1991
UR  - https://ntrs.nasa.gov/citations/19920001716
ID  - 19920001716
ER  -