@book { Willensfreiheit,
    title = "Willensfreiheit?",
    subtitle = "Neue Argumente in einem alten Streit",
    author = "Walter {Bloch}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108410"
}