@book { WiderrufundRckabwicklungvonSubventioneninriskantenFllen,
    title = "Widerruf und Rückabwicklung von Subventionen in riskanten Fällen",
    author = "Christian {Menge}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094140"
}