@article{
  author = {Hemmatnezhad, Milad, Ansari, Reza},
  title = {Finite element formulation for the free vibration analysis of embedded double-walled carbon nanotubes based on nonlocal Timoshenko beam theory},
  journal = {Journal of Theoretical and Applied Physics},
  year = {2013},
  volume = {0},
  number = {1},
  pages = {0-0},
  doi = {10.1186/2251-7235-7-6}
}