TY - RPRT TI - Physical Characterization of Interstellar Comet 2I/2019 Q4 (Borisov) AU - Man-To, Hui AU - Föhring, Dora AU - Hung, Denise AU - Tholen, David J. PY - 2020 DO - 10.3847/1538-3881/ab9df8 UR - https://www.osti.gov/biblio/23013318 ID - 23013318 ER -