@misc{12060,
  author = {Are Bruaset and Xing Cai and Hans Langtangen and Aslak Tveito},
  title = {Diffpack: an Object-Oriented Software Environment for Scientific Computing},
  year = {1997},
  journal = {Invited minisymposium talk at the Fourth US National Congress on Computational Mechanics, San Fransisco},
  month = {August},
  note = {Presented by X. Cai},
}