@book { WegeausderKommunalverschuldung,
    title = "Wege aus der Kommunalverschuldung",
    author = "Dennis {Sander}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01731-1",
    url = "https://www.peterlang.com/document/1047099"
}