@book { OnlineAuktionenundWettbewerbsrecht,
    title = "Online-Auktionen und Wettbewerbsrecht",
    author = "Till {Dunckel}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103138"
}