@article{Brueckner1995,
  author    = {Br{\"u}ckner, Axel},
  title     = {Bruchware? : Software zur Bruchrechnung},
  year      = {1995},
  language  = {de}
}
@article{JahnkeBruecknerReibisetal.1998,
  author    = {Jahnke, Thomas and Br{\"u}ckner, Axel and Reibis, Eugen and Schulz, Rosemarie},
  title     = {Prozente},
  year      = {1998},
  language  = {de}
}