@book { EuropisierungdesGewaltmonopols,
    title = "Europäisierung des Gewaltmonopols",
    author = "Birger {Hansen}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04779-0",
    url = "https://www.peterlang.com/document/1048620"
}