@book { DieAkzeptanzstaatlicherFinanzierungsinstrumente,
    title = "Die Akzeptanz staatlicher Finanzierungsinstrumente",
    author = "Armin {Rolfink}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088902"
}