1. R. Attarnejad, On the derivation of the geometric stiffness and consistent mass matrices for non-prismatic Euler–Bernoulli beam elements. European Congress on Computational Methods in Applied Sciences and Engineering, Barcelona, July 2000.
2. R. Attarnejad, Free Vibration of Non-Prismatic Beams, in: Proceedings of 15th ASCE Engineering Mechanics Conference, New York, June 2002.
3. R. Attarnejad, Basic displacement functions in analysis of non-prismatic beams, Eng Comput. 27 (6).
4. Coupled vibrations of beams—an exact dynamic element stiffness matrix;Friberg;Int. J. Numer. Meth. Eng.,1983
5. Exact Bernoulli–Euler dynamic stiffness matrix for a range of tapered beam;Banerjee;Int. J. Numer. Meth. Eng.,1985