@book { KommunaleFinanzplanungimfderativenStaat,
    title = "Kommunale Finanzplanung im föderativen Staat",
    author = "Reiner {Hagemann}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13823",
    url = "https://www.peterlang.com/document/1068402"
}