@book { FremdsprachenlernenberFachinhalte,
    title = "Fremdsprachenlernen über Fachinhalte",
    subtitle = "Immersion und bilingualer Unterricht in Deutschland",
    author = "Federica {Franceschini}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103012"
}