Meftah, K., L. Sedira, W. Zouari, R. Ayad, and M. Hecini. “A Multilayered 3D Hexahedral Finite Element With Rotational DOFs”. European Journal of Computational Mechanics, vol. 24, no. 3, May 2013, pp. 107-28, https://journals.riverpublishers.com/index.php/EJCM/article/view/847.