@book { NegationNegativittundUtopieimWerkvonWallaceStevens,
    title = "Negation, Negativität und Utopie im Werk von Wallace Stevens",
    author = "Klaus {Martens}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1072083"
}