@book { InterbrandKartellverbotundIntrabrandVereinbarungen,
    title = "Interbrand-Kartellverbot und Intrabrand-Vereinbarungen",
    author = "Marc Christian {Pfeffer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095362"
}