@book { DasHamburgerZeitschriftenwesen,
    title = "Das Hamburger Zeitschriftenwesen",
    author = "Christian {Appel}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b20179",
    url = "https://www.peterlang.com/document/1281118"
}