@article{PrengelKlunterRaudiesetal.2004,
  author    = {Annedore Prengel and Martina Klunter and Monika Raudies and Charlotte Zwack-Stier},
  title     = {Mathematik},
  url       = {http://www.lisum.brandenburg.de/sixcms/media.php/2913/LSA1.pdf},
  year      = {2004},
}