@article{Quaisser1996,
  author    = {Quaisser, Erhard},
  title     = {Schr{\"a}gbilder},
  year      = {1996},
  language  = {de}
}
@article{Quaisser1997,
  author    = {Quaisser, Erhard},
  title     = {OSTWALD-Muster und Parkette - Anregungen aus der Diskreten Geometrie f{\"u}r den Mathematikunterricht},
  year      = {1997},
  language  = {de}
}
@article{Quaisser1997,
  author    = {Quaisser, Erhard},
  title     = {OSTWALD-Muster und Parkette - Anregungen aus der Diskreten Geometrie f{\"u}r den Mathematikunterricht},
  year      = {1997},
  language  = {de}
}
@article{Quaisser1997,
  author    = {Quaisser, Erhard},
  title     = {Schwache Kongruenzebenen},
  year      = {1997},
  language  = {de}
}
@article{Quaisser1996,
  author    = {Quaisser, Erhard},
  title     = {Ein Zwillingspaar diophantischer Gleichungen zweiten Grades},
  year      = {1996},
  language  = {de}
}
@article{Quaisser1998,
  author    = {Quaisser, Erhard},
  title     = {Tetraeder-Geometrie und Symmetrieaspekte},
  year      = {1998},
  language  = {de}
}
@article{Quaisser1995,
  author    = {Quaisser, Erhard},
  title     = {Die Symmetriestruktur von Figuren},
  year      = {1995},
  language  = {de}
}
@article{Quaisser1995,
  author    = {Quaisser, Erhard},
  title     = {Geometrie im Raum, Folge 1},
  year      = {1995},
  language  = {de}
}
@article{Quaisser1995,
  author    = {Quaisser, Erhard},
  title     = {Geometrie im Raum, Folge 2},
  year      = {1995},
  language  = {de}
}
@article{Quaisser1995,
  author    = {Quaisser, Erhard},
  title     = {Geometrie im Raum, Folge 3},
  year      = {1995},
  language  = {de}
}