@book { berwlzteLeistungenderAdministration,
    title = "Überwälzte Leistungen der Administration",
    author = "Ute {Hansen}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13799",
    url = "https://www.peterlang.com/document/1068377"
}