@book { Fremdsprachenunterrichtomnimedial,
    title = "Fremdsprachenunterricht – omnimedial?",
    author = "Sebastian {Chudak}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03098-3",
    url = "https://www.peterlang.com/document/1046586"
}