@article{
  author = {Foroutan, M, Sharafi, Sh, Mohammadi, S},
  title = {Free Vibration Analysis of Functionally Graded Piezoelectric Material Beam by a Modified Mesh Free Method},
  journal = {Journal of Solid Mechanics},
  year = {2019},
  volume = {11},
  issue = {1},
  pages = {144-154},
  doi = {10.22034/jsm.2019.664225},
  url = {https://sanad.iau.ir/fa/Article/908505}
}