TY - RPRT TI - Combined Structural and Compositional Evolution of Planetary Rings Due to Micrometeoroid Impacts and Ballistic Transport AU - Paul R Estrada AU - Richard H Durisen AU - Jeffrey N Cuzzi AU - Demitri A Morgan PY - 2015 UR - https://ntrs.nasa.gov/citations/20160001333 ID - 20160001333 ER -