1. Bushnell, D., “BOSOR4 - Program for Stress, Stability, and Vibration of Complex, Branched Shells of Revolution”, in STRUCTURAL ANALYSIS SYSTEMS, Vol. 2, edited by A. Niku-Lari, Pergamon Press, pp 25–54(1986)
2. Bushnell, D., “PANDA - Interactive Program for Minimum Weight Design of Stiffened Cylindrical Panels and S9hells”, Computers and Structures, Vol. 16, No. 1–4, pp. 167–185 (1983)
3. MCS/NASTRAN User’s Manual, Version 67, MacNeal-Schwendler Corporation, Los Angeles, Ca, 1991
4. DIAL Structural Analysis System User’s Manual, Version L3D3, Lockheed Missiles and Space Co., Sunnyvale, Ca.
5. Mason, P., Jet Propulsion Laboratory, Pasadena, Ca., Telephone conversation