1. Axelrad E. L., Flexible Shells, Izdatielstvo Nauka, Moscow, 1976 (in Russian)
2. Chien W. Z., Equations of axisymmetrical shells in complex quantities and their general solutions for slender ring shells, J. of Qing Hua University, 1979, 19(1): 27–47 (in Chinese)
3. Chien W. Z., General solution for axisymmetrical circular ring shells, Applied Mathematics and Mechanics, 1980, 3(3): 287–299 (in Chinese)
4. Chien W. Z., Non-homogeneous solutions of slender ring shell equation and their applications in instrumental design, J. of Instruments and Meters, 1980, 1: 89–112 (in Chinese)
5. Chien W. Z., Calculations for C-shaped bellows—an application of the general solution for ring shells, Applied Mathematics and Mechanics, 1981, 2(1): 97–111 (in Chinese)