@book { InternationaleVerbraucherstreitigkeiten,
    title = "Internationale Verbraucherstreitigkeiten",
    author = "Katja {Schaltinat}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1086758"
}