@book { JungeSchweizeralsTouristen,
    title = "Junge Schweizer als Touristen",
    author = "Brigitt {Stehrenberger}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1073690"
}