@book { DieEffizienzinderEUFusionskontrolle,
    title = "Die Effizienz in der EU-Fusionskontrolle",
    author = "Philipp Sebastian {Wapler}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107745"
}