@book { DerTankstellenvertragimKartellrecht,
    title = "Der Tankstellenvertrag im Kartellrecht",
    author = "Norbert {Pannagl}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094146"
}