@book { KonventionalisierungundVariation,
    title = "Konventionalisierung und Variation",
    author = "Natalia {Filatkina} and Sören {Stumpf}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-06488-9",
    url = "https://www.peterlang.com/document/1049888"
}