@book { DerMoreEconomicApproachinderEUFusionskontrolle,
    title = "Der «More Economic Approach» in der EU-Fusionskontrolle",
    author = "Arndt {Christiansen}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1136207"
}