@article{2151,
  author = {Jeong-Ho Kim and Glaucio Paulino},
  title = {The interaction integral for fracture of orthotropic functionally graded materials: evaluation of stress intensity factors},
  year = {2003},
  journal = {International journal of solids and structures},
  volume = {40},
  number = {15},
  pages = {3967{\textendash}4001},
  publisher = {Elsevier},
}