TY - RPRT TI - Preimpact characterization of Comet P/Shoemaker-Levy 9 AU - Cochran, Anita L. AU - Whipple, Arthur L. AU - Macqueen, Phillip J. AU - Shelus, Peter J. AU - Whited, Randy W. AU - Claver, C. F. PY - 1994 UR - https://ntrs.nasa.gov/citations/19950053533 ID - 19950053533 ER -