1. Ahmad, S., Irons, B. M. and Zienkiewicz, O. C., “Analysis of Thick and Thin Shell Structures by Curved Finite Elements,” Int. Journal of Numerical Methods in Engineering ,Vol. 2, 419–451 (1970).
2. Belytschko, T., Stolarski, H., et al., “Stress Projection for Membrane and Shear Locking in Shell Finite Elements,” Computer Methods for Applied Mechanics Engineering ,Vol.51, 221–258 (1985)
3. Bhakrebah, S. A. and Schnobrich, W. C, “Finite Element Analysis of Intersecting Cylinders,” Structural Research Series No. 400 ,University of Illinois (1973).
4. Bogner, F.K., Fox, R.L., and Schmit, L.A., ’The Generation of Interelement, Compatible Stiffness and Mass Matrices by the Use of Interpolation Formulas” Proc. Conf. on Matrix Methods in Structural Mechanics Wright-Patters on A.F. Base 397–444 (1965)
5. Budiansky, B. and Radkowski, P. P., “Numerical Analysis of Unsymmetrical Bending of Shells of Revolution,” AIAΛ Journal ,1, 1833–1842 (1963).