1. The semiloof shell element;Irons,1976
2. Isoparametric finite elements in two and three dimensional analysis;Ergatoudis,1968
3. Curved finite elements in the analysis of solid shell and plate structures;Ahmad,1969
4. Reduced integration technique in general analysis of plates and shells;Zienkiewicz;Int. J. Num. Meth. Engng,1974
5. A further modification of the Ahmad shell element;Irons;Int. J. Num. Meth. Engng,1973