@misc{10089,
  author = {Are Bruaset and Hans Langtangen},
  title = {A Comprehensive Set of Tools for Solving Partial Differential Equations; Diffpack},
  year = {1997},
  journal = {Numerical Methods and Software Tools in Industrial Mathematics},
  pages = {61-90},
  publisher = {Birkh\äuser,},
  editor = {M. Dhlen and Aslak Tveito},
}