1. Baruch, M. andSinger, J. “General Instability of Stiffened Circular Conical Shells under Hydrostatic Pressure,”The Aeronautical Quarterly,26, (2),187–204, (May 1965).
2. Baruch, M., Singer, J. andHarari, O., “General Instability of Conical Shells with Non-Uniformly Spaced Stiffeners under Hydrostatic Pressure,”Proc. 7th Israel Annl. Conf. Aviation and Astronautics, Israel Jnl. Technology,3 (1),62–71, (February 1965).
3. TAE Report;J. Singer,1963
4. Singer, J., “On the Buckling of Unstiffened Orthotropic and Stiffened Conical Shells,” 7th Congress Int'l. Aeronautique, Paris, (June 1965).
5. TAE Report;J. Singer,1966