@book { VertikaleVariationimFachwortschatz,
    title = "Vertikale Variation im Fachwortschatz",
    author = "Johannes {Schnitzer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104811"
}