Ghorbanpour Arani, A, Rabbani, H, Amir, S, Khoddami Maraghi, Z, Mohammadimehr, M, Haghparast, E. “Analysis of Nonlinear Vibrations for Multi-walled Carbon Nanotubes Embedded in an Elastic Medium.” Journal of Solid Mechanics, vol. 3, no. 3, 2011, pp. 258-270.