1. Schonberg WP (2001). Protecting Spacecraft Against Meteoroid/Orbital Debris Impact Damage: An Overview. Space Debris, 1:195-210.
2. Schonberg WP (2008). The Development of Ballistic Limit Equations for Dual-Wall Spacecraft Shielding: A Concise History and Suggestions for Future Development, Proceedings of the 49th AIAA/ASME/ASCE/AHS Structures, Structural Dynamics, and Materials Conference, AIAA Paper No. 2008-1966, Chicago, IL.
3. Williams JG, Goodman GP (1965). Structural and Materials Investigation of a 1/8-Scale-Model Space Structure of Toroidal Configuration and Filamentary Construction. NASA TN-D-2652, Washington, DC.
4. McMillan AR (1966). Hypervelocity Impacts into Stainless-Steel Tubes Armored with Reinforced Beryllium. NASA TN-D-3512, Washington, DC.
5. Cour-Palais BG (1969). Meteoroid Protection by Multiwall Structures. Proceedings of the 1969 Hypervelocity Impact Conference, Cincinnati, Ohio.