@article{1231,
  author = {Em{\'\i}lio Silva and Ronny Carbonari and Glaucio Paulino},
  title = {On graded elements for multiphysics applications},
  year = {2007},
  journal = {Smart Materials and Structures},
  volume = {16},
  number = {6},
  pages = {2408},
  publisher = {IOP Publishing},
}