@book { BilingualerUnterrichtmachtSchule,
    title = "Bilingualer Unterricht macht Schule",
    subtitle = "Beiträge aus der Praxisforschung",
    author = "Daniela {Caspari} and Wolfgang {Hallet} and Anke {Wegner} and Wolfgang {Zydatiß}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106382"
}