@article{26275,
  author       = {{Mahnken, Rolf}},
  issn         = {{0376-9429}},
  journal      = {{International Journal of Fracture}},
  pages        = {{269--283}},
  title        = {{{Material forces for crack analysis of functionally graded materials in adaptively refined FE-meshes}}},
  doi          = {{10.1007/s10704-008-9175-9}},
  year         = {{2008}},
}