Abbey, George W.S.2016-10-122016-10-12Abbey, George W.S.. "Return to Reality: Why a Space Shuttle Program is Vital to the Survival of the International Space Station." (2011) James A. Baker III Institute for Public Policy: <a href="http://www.bakerinstitute.org/research/return-to-reality-why-a-space-shuttle-program-is-vital-to-the-survival-of-the-international-space-st/">http://www.bakerinstitute.org/research/return-to-reality-why-a-space-shuttle-program-is-vital-to-the-survival-of-the-international-space-st/</a>.https://hdl.handle.net/1911/91888Former head of NASA Johnson Space Center George W.S. Abbey explains why the space shuttle program was, and still is, vital to the maintenance of the International Space Station.eng