1. ANSYS, User’s manual, revision 5.6, Swanson Analysis Inc. (November 1999)
2. Reddy, J.N.: An introduction to the finite element method. McGraw-Hill, New York (1984)
3. Reddy, J.N.: Energy and variational methods in applied mechanics. John Wiley, New York (1984)
4. Zienkiewicz, O.C., Taylor, R.L.: The finite element method, 4th edn. McGraw-Hill, New York (1989)
5. Bathe, K.J.: Finite element procedures in engineering analysis. Prentice-Hall, Englewood Cliffs (1982)