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2. Lewis JL, Carroll MB, Morales RH, Le TD (2002) National aeronautics and space administration (U.S. Government), Washington, DC, Androgynous, reconfigurable closed loop feedback controlled low impact docking system with load sensing electromagnetic capture ring. US Patent 6,354,540
3. Finkbeiner JR, Dunlap Jr PH, Steinetz BM, Daniels CC (2006) Apollo seals: a basis for the crew exploration vehicle seals, AIAA-2006-5259, presented at the 42nd AIAA/ASME/SAE/ASEE Joint propulsion conference. Sacramento, 2006; also available as NASA/TM—2006-214372
4. de Groh III HC, Miller SKR, Smith IM, Daniels CC, Steinetz BM (2008) Adhesion of silicone elastomer seals for NASA’s crew exploration vehicle 44th AIAA/ASME/SAE/ASEE, joint propulsion conference, July 2008, paper no. AIAA-2008-4625, 21 July 2008. Hartford; also printed as NASA/TM—2008-215433
5. Conrad MC, Daniels CC, Bastrzyk MB (2010) An experimental investigation of silicone-to-metal bond strength in composite space docking system seals, NASA/CR—2010-216886