TY - RPRT TI - The Impact Imperative: Laser Ablation for Deflecting Asteroids, Meteoroids, and Comets From Impacting the Earth AU - Campbell, Jonathan W. AU - Phipps, Claude AU - Smalley, Larry AU - Reilly, Jim AU - Boccis, Dona AU - Howell, Joe T., Jr. PY - 2002 UR - https://ntrs.nasa.gov/citations/20020092012 ID - 20020092012 ER -