Campbell، Jonathan W.؛ Phipps، Claude؛ Smalley، Larry؛ Reilly، James؛ Boccio، Dona (14 مايو 2003). "The Impact Imperative: Laser Ablation for Deflecting Asteroids, Meteoroids, and Comets from Impacting the Earth". AIP Conference Proceedings. AIP Publishing. ج. 664: 509–522. DOI:10.1063/1.1582138. hdl:2060/20020092012.
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Campbell، Jonathan W.؛ Phipps، Claude؛ Smalley، Larry؛ Reilly، James؛ Boccio، Dona (14 مايو 2003). "The Impact Imperative: Laser Ablation for Deflecting Asteroids, Meteoroids, and Comets from Impacting the Earth". AIP Conference Proceedings. AIP Publishing. ج. 664: 509–522. DOI:10.1063/1.1582138. hdl:2060/20020092012.