@book { AdleraugundLuchsenohr,
    title = "Adleraug und Luchsenohr",
    subtitle = "Deutsche Zwillingsformeln und ihr Gebrauch",
    author = "Hans-Georg {Müller}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02105-9",
    url = "https://www.peterlang.com/document/1054277"
}