@book { DerhistorischeBuchbestandderUniversittssternwarteWien,
    title = "Der historische Buchbestand der Universitätssternwarte Wien",
    author = "Karin {Lackner} and Isolde {Müller} and Franz {Kerschbaum} and Roland {Ottensamer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100857"
}