@book { ZulssigeAnordnungenzurBauzeit,
    title = "Zulässige Anordnungen zur Bauzeit",
    author = "Nils Markus {Kahle}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b18780",
    url = "https://www.peterlang.com/document/1140454"
}