@Article{SCI:Guo2004a,
  author =    "Y. Guo and J.A. Nairn",
  title =     "Calculation of J-Integral and Stress Intensity
              Factors using the Material Point Method",
  journal =   "Computer Modeling in Engineering and Sciences",
  volume =    "6",
  number =    "3",
  pages =     "295--308",
  year =      "2004",
  url =       "http://www.sci.utah.edu/publications/Guo2004a/2004_Guo_Nairn_Stress_Intensity_Factors_using_the_Material_Point_Method.pdf",
}