@article{1901,
  author = {Jeong-Ho Kim and Glaucio Paulino},
  title = {T-stress, mixed-mode stress intensity factors, and crack initiation angles in functionally graded materials: a unified approach using the interaction integral method},
  year = {2003},
  journal = {Computer methods in applied mechanics and engineering},
  volume = {192},
  number = {11-12},
  pages = {1463{\textendash}1494},
  publisher = {Elsevier},
}