@article{2441,
  author = {Do-Jun Shim and Glaucio Paulino and Robert Dodds Jr},
  title = {A boundary layer framework considering material gradation effects},
  year = {2006},
  journal = {Engineering fracture mechanics},
  volume = {73},
  number = {5},
  pages = {593{\textendash}615},
  publisher = {Elsevier},
}