Sean O'Keefe

发表

Sean O'Keefe, NASA Administrator

Sean O'Keefe, 2007 .

Looking Back, Moving Forward

Sean O'Keefe, 2007 .

Universal Lessons from Unique Events: Perspectives from Columbia and Katrina

Sean O'Keefe, Amy K. Donahue, 2007 .

Letter to the secretary of defense

Michael J. Hirschberg, C. Rande Vause, Sean O'Keefe, 2011 .