@book { DieGefahrtragungbeimKaufvertrag,
    title = "Die Gefahrtragung beim Kaufvertrag",
    author = "Anja Nikola {Ewert}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103421"
}