@unpublished{EhrgottEuteneuerHamacher2001,
  author  = {Matthias Ehrgott and Angela Euteneuer and Horst W. Hamacher},
  title   = {Standortplanung im Mathematikunterricht},
  institution = {Fachbereich Mathematik},
  series    = {Report in Wirtschafts- und Technomathematik an Schulen (WiMS/TeMS Report)},
  number    = {1, deutsch},
  year    = {2001},
  url  = {http://nbn-resolving.de/urn:nbn:de:hbz:386-kluedo-11770},
}