@book { Churning,
    title = "Churning",
    subtitle = "Strafbarkeit der Spesenschinderei nach deutschem Recht",
    author = "Nina {Nestler}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105357"
}