@book { BilingualenUnterrichtweiterdenken,
    title = "Bilingualen Unterricht weiterdenken",
    author = "Bärbel {Diehr} and Lars {Schmelter}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02264-3",
    url = "https://www.peterlang.com/document/1045704"
}