@article{HaasHolzendorfKuenzeletal.2003,
  author    = {Maria Haas and Ulf Holzendorf and Matthias K{\"u}nzel and Michael Lenk and Bernd Meier and M. Ordnung},
  title     = {Wirtschaft-Technik-Haushalt},
  editor    = {Bernd Meier and Margarete Schmid},
  year      = {2003},
}