@book { MobiliarundUnternehmenshypothekeninEuropa,
    title = "Mobiliar- und Unternehmenshypotheken in Europa",
    author = "Franc {Zimmermann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099986"
}