@Article{SCI:Ste2008c, author = "M. Steffen and P.C. Wallstedt and J.E. Guilkey and R.M. Kirby and M. Berzins", title = "Examination and Analysis of Implementation Choices within the Material Point Method ({MPM})", journal = "Computer Modeling in Engineering & Sciences", volume = "31", number = "2", pages = "107--127", year = "2008", url = "http://www.sci.utah.edu/publications/Ste2008c/steffen_2008_cmes.pdf", }