@book { colesplurilinguesmultilingualschoolsKonzepteInstitutionenundAkteure,
    title = "Écoles plurilingues – multilingual schools: Konzepte, Institutionen und Akteure",
    subtitle = "Internationale Perspektiven",
    author = "Gabriele {Budach} and Jürgen {Erfurt} and Melanie {Kunkel}",
    year = "2008",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104825"
}