@book { ProstitutioninRechtundGesellschaft,
    title = "Prostitution in Recht und Gesellschaft",
    author = "Katrin {Malkmus}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098337"
}