@book { BilingualenUnterrichtweiterentwickelnunderforschen,
    title = "Bilingualen Unterricht weiterentwickeln und erforschen",
    author = "Bärbel {Diehr} and Angelika {Preisfeld} and Lars {Schmelter}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-07058-3",
    url = "https://www.peterlang.com/document/1050735"
}