@book { DieLyrikPhilippvonZesens,
    title = "Die Lyrik Philipp von Zesens",
    author = "Josef {Keller}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1070725"
}