@book { DieEigenheimzulageeinKnigsweg,
    title = "Die Eigenheimzulage ein Königsweg?",
    author = "Barbara {Schilli}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088100"
}