@techreport{ExtrinsicINTL07,
  author = "Isaac Dooley and Sandhya Mangala and Laxmikant Kale and Philippe Geubelle" ,
  title = "Parallel Simulations of Dynamic Fracture Using Extrinsic Cohesive Elements",
  year = "2007",
  month = "July",
  number = "07-07",
  Institution = "Parallel Programming Laboratory, Department of
          Computer Science, University of Illinois at
          Urbana-Champaign"
}