@book { DieHollisSammlunginBern,
    title = "Die Hollis-Sammlung in Bern",
    author = "Hans {Utz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1069265"
}